QUOTE(nexus2238 @ Dec 30 2013, 10:55 PM)
You are listing 3 models with very different characteristics.
MBA - 13", very light, chic. Gaming in OSX? Unless you bootcamp or VM with Win OS, not much game titles.
T440p - 14" bento box that build like a tank.
Y510p - 15" bling bling entry level gaming machine, heavy, build quality is nothing to shout about.
So what do you really want?
If you want something not too heavy, CAN look like a bento with solid build, and CAN bling bling during gaming, then:
www.illegear.com
Illegear RE-13 Pro, i5-4200M + Nvidia GTX765M + (1920x1080 IPS)@RM3999[2kg][Onkyo, SoundBlaster Cinema], 4GB, 500GB(7200rpm), Backlit Keyboard, FreeDOS, [CPU Options: i5-4200M - i7-4900MQ]
They accept credit card

haha, thanks Nexus, its a lot of difference between between the above, MBA or MBP because been using Mac for personal use for past 5 years, but as you said quite limited game titles unless pair with parallel windows, but the graphics card is kinda limited since integrated Intel 5000 graphic card
whereas my choice of ThinkPad was well build like a tank yet still efficient though maybe no at this point of time as a primary choice yet
Y510p was due to well gaming machine yet can do other stuff but boy it is heavy

Generally speaking just light gaming i.e. Warcraft, Starcraft or Dota type of game, nothing too taxing, i am fine with playing low reso and low quality
More focus toward portability which MBA was my choice but thinking windows can play more games