i have an iPad, so i can appreciate how smooth iOS is, but I still wouldn't want an iPhone. Android is the best median between WinMo and iOS and that seems to be perfect for me. What I love about the EVO is the screen size... absolutely amazing. Retina display is sweet and I can't wait for a 4.3" Android to sport something comparable like a super amoled display, but until that happens I'll take the much larger screen over smaller/prettier screen any day. For those that jumped from the Touch Pro to the Touch Pro2, you should know what I'm talking about when I say size makes a difference.
BTW, technobuffalo also gave the nod to EVO over iPhone
http://www.youtube.com/watch?v=ULv-0xcciFE and that's coming from an iPhone user.