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 Korua Apollo . 17 Nitro Treehugger . 17 Lib x Lost Mayhem Short Fat . 17 Jones Storm Chaser . 17 Ride Warpig . 16 Never Summer Swift
17 Burton Malavita Wing . 16 Burton Genesis X
16 Flow Talon