Bando belts (with the fleece-textured ribs) work well and are OEM on many Honda vehicles. I've used them on the two Odysseys I maintain and they don't squeal.
Seriously, I would just try the 303 Protectant. Maybe a couple doses. If it fixes the squeak (on a 1 year old, almost new belt), you'll save yourself the headache of doing this job. Plus, any new belt you install might also squeak.