I've always loved the idea of Roy, as a character. He's like Marth, but mechanically almost opposite. He doesn't have very high knockback, he falls faster, his moves tend to pop his opponents up instead of away. All things that lend themselves to him being more combo oriented. I always wanted to play as him, and I kind of did for awhile, but I never dedicated myself to him very much. His flaws frustrated me more than they did with most of the melee cast. Functionally, he's just always been so inferior to Marth. Like, Marth is a pretty amazing character, it's hard to compete with that. If you like swinging swords, and you want to do well, you should probably go with Marth.
In Brawl, Ike kind of went in the other direction. He hits like a truck, knocking his opponents absurdly far away in most cases, and doesn't really do much comboing outside of his jab. Still way, way inferior to Marth. PM fixed a lot of that up quite nicely tho, and I'd say he's very much on par with Marth. Some may even say, better. This leaves me curious. How good will Roy be? Will he be more fun to play, once he stops sucking as bad as he did in Melee? I'd very much like to try him.
Ike may have that blue flame (which is pretty badass, in it's own right), but Roy will always be our boy, with teh fire!!1!!one!1!!