There's a lot of good Temples. Though I'll take the Water Temple over the Fire Temple any day. Never minded the backtracking, bootsswitching(I love the OOT menu in itself) or any of that. Not that I disagree with the idea of making the boots items in the remake either.
Though I love the Shadow Temple. But hey, I love scary stuff. I thought it was extremely fun design. The boss however is less fun cause the bow is hard to aim while you're bouncing everywhere.
MM is fun too. Though to be honest, the temples weren't as fun to me. Just couldn't enjoy 'em as much. Great Bay Temple was the only one I didn't like, however. Also, Temple of Droplets and Mermaid's Cave(both past and present) are pretty good. But I really liked the Oracles games, so...