T4i or 7D
I have both - for different reasons. I have the 7D for sports and events. The 19-point AF, the 8 fps, the dual Digic 4, etc. I love the 7D. I have shot 6400 with my 7D and have had decent results in PP.
I have the T4i for when I don't want to haul around a super huge camera. I haven't had a chance to try the T4i at sports yet, but 5fps should come in handy. I lve the STM lens, too.
Both have grips and I use the grips 99-44/100ths of the time. I had a T3i, but am selling it. I bought the T4i over 60D because it was newer, had similar AF and similar fps.
Both the T-i's are great cameras to have.