The Rider's Choice is one of my favorite boards of all time. I've owned a bunch over the years and all versions, MTX, BTX, C2BTX, etc... The current version has been the same for the past 3-4yrs other than graphics, and it's a killer all mountain board. The asym sidecuts are real, and noticeable, as is the magnetraction on the edges. I wouldn't say that stuff is required, but it's nice to have and you'll be able to take advantage of it. This board really works on just about everything inbounds.
18 Snoplanks Asym Fish . 16 NS Swift - 14 TJ Brand Retro Fish
17 Burton Malavita Wing . 16 Burton Genesis X
16 Flow Talon