Obryn
Hero
I can honestly say I don't much care for multiclassing at all, in any edition.
In 1e/2e it was kind of wacky. In 3e, it was a disguised point-buy. In 4e, it was either multi-dabbling or "here's a set of rules for you to make a bad character." Of these, I prefer the multi-dabbling, but that's because you're still sticking close to an archetype, overall. I least prefer the 3e version because most every character picked something up (as long as they could keep their full casting progression).
My ideal class-based system would more or less do away with multiclassing and do two things. (1) Make classes broad and flexible enough to cover several closely-grouped archetypes, and (2) give enough archetypes you have a class that approaches your character concept.
-O
In 1e/2e it was kind of wacky. In 3e, it was a disguised point-buy. In 4e, it was either multi-dabbling or "here's a set of rules for you to make a bad character." Of these, I prefer the multi-dabbling, but that's because you're still sticking close to an archetype, overall. I least prefer the 3e version because most every character picked something up (as long as they could keep their full casting progression).
My ideal class-based system would more or less do away with multiclassing and do two things. (1) Make classes broad and flexible enough to cover several closely-grouped archetypes, and (2) give enough archetypes you have a class that approaches your character concept.
-O