I like to stack Foresight and Featherfoot just to make it feel like I may have popped an actual cool-down.

The reality though is that if you took all the cross class stuff away I wouldn't really miss anything except for the 'voke, which is indispensable, and convalescence which is a really good ability.

I feel like the reason Savage Blade and Skull Sunder are available cross class is to attempt to allow some non-tank classes to have something with an enmity bonus? Like a Dragoon (or even monk) can do a bit of tanking against an add or something and skull sunder would even let him keep his job stone.