We had a Bigfoot
21FB for 8 years and now have an Oliver
23. The Bigfoot
had a lot of storage, especially the double door shelved cabinets & double drawer stacks beside the bathroom. The vanity & medicine cabinet were also great. My favorite storage in the Oliver
is the pantry (very large & easy to access) and the closet with 2 large shelves for folded clothes above the rod. The Bigfoot
closet was less accessible because we kept a small dog kennel at the foot of the bed. The amount of overhead cabinets seems similar; however, the cabinets in the Oliver
are more accessible to us because we have twin beds which makes the cabinets easier to reach.
The storage in the Bigfoot was one of the primary reasons we bought it; however, we found that we usually packed more things than we really needed. My only advice is for you to consider more factors than storage (i.e., bed layout, ease of towing, etc.).
Both are high quality trailers so just do your homework to see what best meets your needs. Good luck!