Both are good bindings, but Lexa is better of the 2. Or bump up to the Escapade. The Trilogy is hardly any better than the Rosa that costs significantly less. Might also want to checkout the Raiden Eris, Rome Madison Boss, or if you can wait, next year's NOW IPO for women.
17 Capita Kazu Kokubo Pro . 17 Korua Apollo . 17 Lib x Lost Mayhem Short Fat . 16 Never Summer Swift . 14 TJ Brand Retro Fish
17 Burton Malavita Wing . 16 Burton Genesis X
16 Flow Talon