I'm currently looking at upgrading my front bumper to the Expedition One bumper. I think the AEV bumper arguably looks the best, but if I recall correctly you actually loose approach angle. Prob not a big deal if you're not really wheeling hard or often. I've got an RSI cap, and the angles of the cap are similar to the angles of the expo1 bumper, so I think it will tie in nice. I also like the additional approach angle (although I don't wheel hard enough to justify needing it, the main pull is the winch).
Bumper mounting the spare is def more accessible, but as others have said, getting the tire back up is a bit much. Also, keep in mind that if you're not rotating that spare with the others, you're letting it sit and get rotted away by the sun, rain, snow, etc. It's not going to rot before the others, but if you just leave it up it may be bad by the time you need it. Other options are bed mounting or on top of your cap/rack/etc.