What do you want to shoot?
Ergonomics and usability are certainly important, but my preference is to pick a system that has lenses that are good and within your budget for what I want to shoot, and then select a body you like that can use them.
You're talking about Canon dSLRs, and your objection to how the SL1 feels compared to the T5i, so the T5i would be the obvious choice. But if Nikon has better, cheaper lenses for what you want to shoot, the T5i won't help you.
- The lens is the thing.
- 'Full Frame' is the new 'Medium Format'.
- "One good test is worth a thousand expert opinions." - Tex Johnston, Boeing 707 test pilot.