Both systems are fine, yes Trophies are 'deeper' in that they give an finer view of what you've achieved - I just want a way to make them silent! I hate playing an atmospheric game like Bioshock and having a cheery sound beep and a notification I've just gotten a Trophy.
On MP games I don't mind but on SP I want a switch in the XMB to make Trophies 'silent' - i.e. no in-game notification you've earned it.
Try to be reasonable... its easier than you think...