No, really there's very little such difference as you're making out.
Either way, you choose your feats. You choose your skills. You choose your gear. You choose your Epic Destiny, and Twists. You choose how to spend your identical number of Action Points, while choosing at most 1 set of Tier 5s.
You make all the exact same choices. There's just as much effort and skill in making all those choices either way.
Where's this special superior in making a multi-class? That you can get top-tier enhancements from a class you're barely splashing, thanks to the enhancement pass? As far as I'm concerned, that's a bug, not a feature, but not anything super-skilled either way.
Hey, that's what I just said!