not an expert but imho: depends on the angle. Increase the angle, more shoulders are used...
For best results with your chest don't go higher than 30 degrees.
Compared to flat bench how much more does incline emphasize the front delts?
If it's an adjustable bench I always put it on the lowest angle possible.
respected Hulkotron, do you have Ronnie's bodybuilding book? what angle does he reccomend for inclines?
Why the fuck do you keep stalking me everywhere asking questions about Ronnie? I'm not Hulkster you idiot.