>>3223885> Is the T6i a good enough upgrade?The T6i is a huge step backwards in handling and usability. Off the top of my head, going to a T6i makes you lose your autofocus point joystick, rear control wheel, and all of your custom mode dial settings. If you never used any of those, then you'll be fine with the T6i. If you do use any of them, moving to a Rebel will be painful.
Better options: 7D, 5D Mark II.