Which exercise first
 

I do chest and back on the same day. I do 4x10 on deadlifts, then 4x10 dumbbell bench press, then 4x10 bent over rows, then incline dumbbell bench press. That's my workout aside from doing dips and a bicep exercise at the end.

I did deadlifts first because I felt it gave me a full body workout so I don't have to warm up for chest as much. The only issue is that I'm obviously completely beat, and my forearms feel tight making the dumbbell press very hard to do.

Any comments on whether it would make any sort of difference if I started with cheat first?

I think you are doing things fine!!!

I personally don't find i get great results with this split. I've done it in the past, good pump just find i can't lift as much on these important lifts, one after another on the same day.

Any particular reason you're combing these body parts?

For me, deadlifts are key same with bench press - both to try and bring up legging body parts. I don't think I could ever do them back to back on the same day - take a lot out of you.

I'd split those days up - and then you'll be able to hammer out those incline DB presses no problem!