RE: Training chest
Theres no 'one size fits all', people will respond differently to different exercises, training etc...
I do the following for Chest, and works well for me.
4x6 Incline DB Press (30 degree incline)
3x8 Chest Dips
I find the most effective way for me overall, is to stick with compounds and focus on progressing, which includes; Deads, BB Rows, DB OH Press, Front Squats, SLDL...