for learning a bomber roll, fit is essential. Everyone is different, but in my experience, women often get an excellent fit in Dagger boats (though, yes, Bliss Stick has it's fans as well)...you may find the WaveSport Diesel is stable, but harder to roll & control.
I would recommend the Mamba, or maybe my new favorite, the Axiom (practically rolls itself)...at your height/weight, consider the Axiom 8.0 (Dagger boats work well a ways above their stated weight range, so go for physical fit, not theoretical weight range when choosing...well, within reason, lol!) (btw, if you can find one, the Dagger Juice 6.9 is easy to roll, is extremely forgiving, has good volume distribution (feels like a higher-volume boat) & is just plain fun! I would recommend it over the Mamba, unless you actually want to get into creeking - I sold my Mamba after I got my Juice...)
(btw #2-the Dagger Juice looks like a playboat, but really is a forgiving river runner - if you have the opportunity, give it a chance; I don't think you'll be disappointed...for info:
playak.com/article.php?id=1770)