wwhich software is best for 45 player sit n go ?

after playing different kinds of tournaments and sitngoes for a year, i now think that i am suited for 45 player sitngo more than any other tournament. to improve myself at that area, which software is best do you think ? i currently dont use any software and never used. if that software be accepted on pokerstars, it is better

I don't think there is any software that will help you in 45 player SnG's. The chances that you will run into the same folks more than one or two tournamnets a week are really rare. By the time you get enough data on players, its too late.

I recommend taking good notes, working on quick reads, and playing tight agressive poker.