I am a big supporter of Comp in tournament's it is what my group has always been about. What I mean by comp is the old school comp system. This was basically (it was more complex ) a well rounded force with more troops than anything else and a % restriction on wargear. Things have changed and you have to role with the punch's.
I was a big fan of comp in the early V3 days. Today, it is easier to target the independent characters, there are fewer exotic combinations of wargear that get unbalanced, and the rules are generally better in terms of maintaining game balance.
But I still like to see a troop heavy force on the table. I'd like the rules and codices to be set up so a well rounded collection of basic models is competitive. Exotics should make the game more fun, but not be required to clobber the enemy.
But then, I'm not an Ard Boyz sort of player.