LG Nexus 4 Better than Sony Xperia Z and SamsungGalaxy S4?

Sony Brings a new model named Xperia Z and ZL with a waterproof and dust proof feature.
Samsung has brought S4 to compete to their rival with somewhat same price and similar features.
Both of these smart phones are $650+.
I am comparing a 360$ Smartphone with these two monsters. So that you can buy a phone which matches these two classics closely.

                  Nexus4                                         Galaxy S4                                      Xperia Z

Price             390$ U.S                                   650$ U.S                                      680$ U.S

Speed        Quad-core 1.5 GHz                     Quad-core 1.9 GHz                             Quad-core 1.5 GHz

Screen           4.7 inches                             4.72 Inches                               5 inches

RAM               2GB                                        2GB                                            2GB

GPU               Adreno 320                           Adreno 320                             Adreno 320

OS    Android, v4.2 (Jelly Bean),          Android OS, v4.2.2 (Jelly Bean)      Android, v4.1.2 (Jelly Bean), 

       upgradable to v4.2.2 Jelly Bean                                                                 planned upgrade to v4.2

Camera    8 MP,                                                         13 MP,                                             13 MP autofocus                                                       

                   autofocus, LED flash,         autofocus, LED flash,geo-tagging,         camerawith LED flash

    Geo-tagging  photo sphere            touch focus, face detection,                   Simultaneous  HD video 

                     video recording                focus, faceand smile                                  @1080 and image  

                    ,1080p@30fps                    detection,HDR recording                                     with HDR

Front             1.3 MP                                                 2MP                                                                    2.2MP

Cam

Waterproof    NO                                                        NO                                                                 YES

Keeping These more features in mind one should surely go for a Nexus. Since google makes all of the upgrades of android, so it will be smart move to go for a google smartphone (Nexus) rather than doubly expensive phones with similar features. Apart from these theoretical stats. Nexus is way better on practical grounds, i will never lag if you dont mess up with Roms and kernels. In short its and all round economical high level smart phone of this era.

Feature Comparisons

Sony Xperia Z: (upto $680 U.S)

• OS:Android OS, v4.1.2 (Jelly Bean), planned upgrade to v4.2 (Jelly Bean)
• Screen: 5 inches 
• Speed: Quad-core 1.5 GHz Krait CPU, 2 GB RAM, Adreno 320 GPU; Qualcomm Snapdragon S4 Pro chipset
  
• Camera:13 MP autofocus camera with LED flash and geo-tagging, HDR
• 1080p video recording @ 30fps with HDR mode, continuous autofocus and stereo sound
• 2.2 MP front-facing camera, 1080p video recording
• Uniqueness:IP 57 certification - dust resistant and water resistant
• Wi-Fi a/b/g/n, Wi-Fi Direct and DLNA; Wireless TV out
• GPS with A-GPS, GLONASS
• 16GB of built-in storage; microSD card slot
• MHL-enabled microUSB port
• Bluetooth v4.0
• NFC
• Standard 3.5 mm audio jack
• Accelerometer and proximity sensor
• Active noise cancellation with dedicated mic
• Glass front and back panels

Sony Xperia Z-Waterproof 

Samsung Galaxy S4/Grand (upto $649 U.S)

• OS: Android OS, v4.2.2 (Jelly Bean)
• Qualcomm APQ8064T Snapdragon 600
• Speed: Quad-core 1.9 GHz Krait 300, GPU:Adreno 320, RAM: 2GB
• Screen: 4.72 Inches
• Camera: 13 MP, 4128 x 3096 pixels, autofocus, LED flash,Dual Shot, Simultaneous HD video and image recording, geo-tagging, touch focus, face and smile detection, image stabilization, HDR
• battery: Li-Ion 2600 mAh battery
• Storage : 16/32/64 GB storage
• Infrared
• NFC
• USB
• Bluetooth v4.0 with A2DP, EDR, LE
• ,Wi-Fi 802.11 a/b/g/n/ac, dual-band, DLNA, Wi-Fi Direct, Wi-Fi hotspot
• - Air gestures
• Wireless charging
  - Dropbox (50 GB storage)
  - Active noise cancellation with dedicated mic
  - TV-out (via MHL 2 A/V link)
• SNS integration
  - MP4/DivX/XviD/WMV/H.264/H.263 player
  - MP3/WAV/eAAC+/AC3/FLAC player
  - Organizer
  - Image/video editor
  - Document viewer (Word, Excel, PowerPoint, PDF)
  - Google Search, Maps, Gmail,
  YouTube, Calendar, Google Talk, Picasa
  - Voice memo/dial/commands
  - Predictive text input (Swype)

LG Nexus 4/ LG mako : (Upto $ 360 U.S)

• OS: Android OS, v4.2 (Jelly Bean), upgradable to v4.2.2 (Jelly Bean)
• Speed: Quad-core 1.5 GHz Krait , RAM: 2GB, GPU: Adreno 320 , Qualcomm APQ8064 Snapdragon
• Camera: 8 MP, 3264 x 2448 pixels, autofocus, LED flash,Geo-tagging, touch focus, face detection, photo sphere,Front cam;1.3MP
• Screen:  4.7 Inches
  
• Battery: Non-removable Li-Po 2100 mAh battery, Talk time Up to 15 h, Stand-by Up to 390 h
• NFC
• USB microUSB (SlimPort) v2.0
• Bluetooth v4.0 with A2DP
• ,Wi-Fi: Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot
• - SNS integration
  - Active noise cancellation with dedicated mic
  - MP4/H.264/H.263 player
  - MP3/WAV/eAAC+/AC3 player
• - Image/video editor
  - Document editor
  - Google Search, Maps, Gmail,
  YouTube, Calendar, Google Talk, Picasa
  - Voice memo/dial/commands
  - Predictive text input