Well that's simple: if you want to play on a close to vanilla world, stick with SmallWorld. There will be no teleporting, no jetpacks, no other 'cheats' to distract you from regular old Minecraft.

If you want the convenience to teleport to wherever you're going and use jetpacks then stick with the Spawn world and Earth Bound.

If you want both, then I suggest you guys start building railroads on SmallWorld like we had on the previous server