both are great options, i dont think you'd regret either. Probably the best move is to judge on the condition of the bikes. also if the hobbit is a pa50-i slow model, hard pass - derestricting the slow hobbits is a pain, but derestricting a slow maxi is negligible. the only thing making hobbits harder to work on really is the carb is a bitch to get to, but on puch it's stupid easy. But either one I could rebuild in an afternoon, great parts availability, community know-how, great bikes and good beginner bikes too, easier than other makes.
also, as a new rider, i'll save you some trouble and note that rebel moby's posts, including the above (which echos the sentiment of my post), are often very good advice. and anything posted by don ohio is proably best ignored ;)
again I'll reiterate, both great options, and best bet is to judge on personal attraction and cost/condition of the actual bikes in question