In terms of absolute stats, I'd give the nod to Edmonds. Pujols has more value if you factor in positional scarcity, though (assuming he qualifies at 3b).
If you can in fact get Kent and one of those two for Glavine + Spivey, I'd certainly do it. Glavine is excellent, but two solid upgrades would make the deal worthwhile. Good luck!
It never hurts to talk trade, but I imagine the other guy would stick with Varitek and Fick in this case. All three of these catchers are in roughly the same tier.