KitchenAids aren't as indestructible as they used to be, but they're still the best option out there.
Bowl lift is definitely the way to go. Tilt head is for amateurs

But even if you don't need/want the increased power, the bowl lift can operate under your cabinets, whereas (at least with my old house cabinets) you'd have to slide the thing out (it's HEAVY) to tilt the head and access the bowl. PITA.
Tips: Get an extra bowl. Otherwise you'll find yourself having to wash mid-way through for many recipes. Get a replacement beater with the flexible 'scraping' edge.