So...styling aside and removable battery aside (for me neither matter enough to make a difference)...the deciding factor will be if the GS3 has a significantly better GPU. It looks like it is going to have the same dual core S4 as the E4GLTE:
Time for me, I cant wait any longer... If the GS3 is said to come out with in 2 weeks of the EVO's time then I'll most likely go with Samsung. I like both devices and I see a lot of E4GLTE's but I do believe that by this being in the E4GLTE forum, its biased and more people will automatically choose it.
The decision pretty easy for me.
1. Screen size and quality isn't going to be any better at this point not to mention EVO is non pentile
2. Sense vs touch wiz. Yeah I'll take sense any day
3. S4 chip is going to be a beast over anything coming out this year. If only Sammy won't come out with there exynos 5250 until probably the end of the year at the earliest. Otherwise another point to the EVO.
4. Design of the EVO is a mixed bag for a lot but personally I don't mind it at all. "It's called put a case on it" seriously physically look and feel the phone out. If your not going to buy a phone because of the back casing then you have problems.