My 70D was quite an upgrade from my 60D..... mainly the two auto focus systems, i.e., the viewfinder AF and the Live View. The changes to the Live View, even for still photographs, aren't subtle. I didn't use it much on the 60D because it was a bit cumbersome..... but when setting up a shot with the focal point off center, the Live View on the 70D is amazing. Add to that the much faster frames per second and better viewfinder AF, the 70D is a very nice camera. I haven't used the T5i, so I can't speak directly to that camera.
I have never tried video on any of my DSLRs. I guess I should. We have a Sony video camera and that's what my wife uses for videos. They are more her thing than mine.
Kim (the male variety) Canon 1DX2 | 1D IV | 16-35 f/4 IS | 24-105 f/4 IS | 100L IS macro | 70-200mm f/2.8L IS II | 100-400Lii | 50 f/1.8 STM | Canon 1.4X III
RRS tripod and monopod | 580EXII | Cinch 1 & Loop 3 Special Edition | Editing Encouraged