3 friends and I are doing a sealed box. Trying to determine which one to do:
Return to Ravica
Theros
M15
Avacyn Restored
Avacyn has a reputation for being awful in limited format but I kinda liked it. So far I have loved M15 sealed and would go with that :)
Avacyn, the cards are just so fun to play with!
Avacyn Restored has a total of maybe four cards that are actually worth much:
Avacyn, herself
Griselbrand
Cavern of Souls
Restoration Angel.
For Value, I'd say either RtR or Theros. RtR has Shocks, Deathrite Shaman, Abrupt Decay and Sphinx's Rev (which is on the decline). Theros has Thoughtseize and other cards that'll probably go up after rotation as they end up in decks.
Depends on what your goal is after you draft the box. Theros will be the most appropriate for standard. RtR will be best if you are thinking about modern. M15 would be good for standard, but won't have as much as Theros. Avacyn will have the least value cards once you are done cracking packs.