I would highly recommend the Toto Drake. This is a real workhorse in the Toto family of fine toilets. Street prices are comparable with AS and other brands, but it is not available in discount houses. The cheap builder grade toilets sold in the discount houses will be a nightmare waiting to happen for you. No toilet is 100% clog proof, but the Drake comes about as close to it as possible. Most of us Toto owners don't even have a plunger anymore. Granted renters may try to flush a diaper or other articles that never should be in a toilet and manage to clog even the Drake, so I won't go so far as to say "clog proof". I don't poop golf balls, so I can attest to that.