As I stated prior...Yes you will have good and bad experiences at all.
CSR just appeared better because Never did I stand....Not that I mind, because I'm always giving up my seat for anyone who needs it( Im used to this by Now.)
CSR being that its a Convention resort definitely plays a huge role in how busy the buses are.....Conv. adults usually aren't going to the parks early, so you get free picks of the seats,,NO Matter which stop....I can go on n on about the rest of the resort and how good it is but that's an answer for another thread..
Enjoy whichever you choose.