I thought Mexico was fucking boring, and its story was largely self-contained and didn't service the main plot in any meaningful way. The atmosphere and landscape was enjoyable to travel across, though. In any case New Austin was my favourite section; primarily because that's the first area you're introduced to, where everything about RDR is so fresh and wondrous. I can remember completely skipping the story at first in favour of just exploring around, completing challenges, capturing bounties ect.
West Elizabeth is also fantastic. I love the soundtrack when you're in Blackwater, and Tall Trees could become surprisingly haunting at night time when-OMGABEARSOMEBODYHELPME!
Totally with Yummy. West Elizabeth was such an amazing section — also fuck those bears and cougars.
Haven't read more than 2 pages of this thread, but I know it's going down the hole of the designers saying "I love it, SEXY IMAGES!" and the rest saying "It's messy and I can't consume information because the images are too damm big."
It's very well designed, but a horrible user experience. That's it.
Adding a third level of depth to behind Deathtrap could be interesting. I'm thinking more along the lines of a pattern or detailed texture. I haven't played enough Gaige to offer some solutions to what it could be, but I know one tree is very shock heavy.