Nexus 4, HTC EVO 4g LTE or LG Optimus G

Right now im really stuck between a rock and a hard place, I have no idea out of these phones which one to get. I currently have an LG Rumor Touch (great, durable first phone) but obviously, all things have to come to an end and it would be this phone. I currently live in Detroit and am on the Sprint network, so there currently is LTE coverage not even 4G. So right now the obivious choice would be the Nexus 4. But I do know that next year they do plan on building 4G towers. I know that the EVO only has a dual core while there others have quad. But the EVO has debatebly one of the best cameras and screens I also like what they did with the android interface. I'm not too keen on just the basic android interface with the Optimus sports but it has a quad core and a 13 MP camera (I know that MP don't really matter). The Nexus 4 is $300 so thats something I wouldn't put my money on till its $200, the Optimus is $200 and as of 2 days ago the EVO is $100. I would love some help!

Also a side not, the nexus 4 is Unlocked, so its not tied to a contract. 

the nexus is the best deal. no contract, great features and pure android with guarenteed updates 

Can you explain to me the benifit of having a unlocked phone, I don't really understand what it means.

I can't get an unlocked phone on sprint because Sprint doesn't use GSM so rule the Nexus out. So Optimus or Evo, bare in mind the price.

If the Evo 4G is what I think it is (ie: the sprint version of the HTC One X), I'd grab that. I have the One X (international Tegra 3 version) and the screen is just drop dead gorgeous, nothing even comes close to it. You also get the HTC build quality, which is miles ahead of anything all the other android OEMs use.

I would love to get the One X but you can't get unlocked phones on Sprint so I think thats what I'll end up doing I think I'm also going to root it to google's adroid 4.1

i just bought the optimus g today on sprint, my gf has the G3s and this thing just kills it, the only problem is you cant remove the battery and no microsd, but its got 25gigs of space, and a 13mp camera!