I'd say the most preferable thing would be for spawns to remain at the level they were prior to a reset, after a reset. If they go minimum, some people will vote no to a reset to prevent it, even if the server needs a reset. If they go max, people might try to force a reset when none is needed, so that they can get to a max spawn (and could lead to abuse, running a dungeon then resetting for max, etc)
If they just stayed the same no one would care and people would vote for or against resets only as they deemed necessary for the server itself.
Also, it seems silly that they should change between resets-it's apparent that only the player inititated resets are causing this. Crashes and DM resets don't seem to, so I don't see why a player reset should. Based on the initial answer to this thread the first time I brought it up, they aren't supposed to change anyway.