TonyRo wrote on 09/30/15 at 16:50:04:
Bagirov - Alekhine's Defense
Djukic - 3...Qd8 Scandinavian
Meier - Rubinstein French
Hillarp Persson - Modern with ...a6
Just a few off the top of my head. I purposely left off guys like Larsen, who pioneered a bunch of different offbeat & risky lines, but didn't really specialize in any of them. I think of guys like Morozevich and Jobava in the same way, at least a bit - when you hit that level you can't necessarily "specialize" in anything, you have to keep moving.
Yes, agree. I too was thinking of guys who really champion a particular line or defense. Everyone knows its coming, its not considered to be all that great, and yet . . .
Bagirov on the Alekhine is a good one. I would add Lev Alburt, who stuck with the ..g6 line that is sometimes named after him despite some bad results.
Some other possibilities:
Grivas -- the Grivas Sicilian
Rausis -- the Baltic
Malaniuk -- the Leningrad, although maybe he's made it respectable
Kempinski -- his Scheveningen line with ..Na5 (covered by Ftacnik in his Najdorf book)