Actually Oriana could be better than cradle for 10 players too. The thing is that starting position often gets completely boned on non-wraparound maps, on a wraparound everyone has to worry about every directions. If you start on an edge (or even better a corner) in Cradle its a huge advantage over those who get stuck in the middle.
I'm fine with Cradle though, it just makes life slightly unfair for some unlucky random people
I'd also like to request that any 'lake' water province be designated as nostart, otherwise its really annoying to play an aquatic nation