Malibu's aren't bad built boats. They're still in the top three manufacturers, so you can't go wrong either way. Demo them both, see which one you like better.
I can also attest that my neighbors 2010 lsv has never been in the shop, while my 2010 15 spent 6 months in the shop for various things.
2011 X25-Wetsounds galore, GoSurfAssist equipped!