Ride Snowboard Size Chart 2012 - Men's | evo
At 145lbs, and size 10 you'd be in the sweet spot for the 154W I would've thought (125-175lbs and size 9.5-11). Whereas for the 152 you're at the top of the weight range and above the boot size range.
I tend to put a bit of emphasis on the boot size aspect. But maybe because that's I have size 12 feet and I really don't want toe drag!