Oh, this is like asking if Ford or Chevy is better. Each have their fans. We went with aluminum and spend about half the year in it. Don't believe the folks that say you need a special kind of rig to full time. Floor plan is the main point for me. Does it have the space you need for months on end? Is the bath easy to move around in? I love my walk in shower, never want one of those tub/shower deals again. Does the kitchen have enough storage space. Can you see the TV comfortably from your couch? If your spouse goes to bed before you, can you close a door and give them some privacy? Those are the things that make living nice. The roof will last those 10 years on most decent units. Then you will have to maintain the rest, just like on any home. Good luck.