I used:
OLY: come out with lines very quickly, a must have for taking leads.
PINN: one of the best 'opinions' out there, low juice.
Canbet: good opinions, low vig- sometimes at -107 when Pinn goes to over -110.
Playerssuperbook: sometimes good dog lines, quit using them when they pissed me off.
5dimes: good props, and good for 2nd halves.
SIA: kicked me out, but we all have friends dont we??
Carib, CRIS, Bodog didnt use them as much.
Tradesports: hedging midstream, taking leads midstream, low vig.