As regards grinds, I think the full hollow is best for the beginner. You get quite a lot of feedback and learn to adjust the angle pretty quickly. I would temper this advice by recommending the newcomer stick to 5/8 and 6/8 razors. Bigger or smaller in my opinion makes things a bit harder. Wedge grinds are feedback deficient and the weight can be off-putting. Still, if you learn to shave with a wedge, everything else will seem easier ;) - IMO, YMMV etc.