papaspur
Kasey Keller
But the point here is that Vermaelen is more valuable to the team, no? Gallas' value is diminshing, whereas Vermaelen's can only increase.
As for your reluctance to do hybrid line-ups, I completely understand. My only excuse is that having a brother who(despite my most vehement efforts to the contrary) supports Arsenal has left me a bit more able to stomach them than most Spurs supporters I know.
Vermaelen does have injury issues though, so like totman said, if it was only a matter of skill, I'd definitely put him in at least the same caliber as most of our CBs.