Certainly, feel free to do either of those
Hmm.... looking back on the levels that were reviewed during my hiatus from the forum (Crazy 16 -- Wicked 19) there's one in particular for which my opinion is very different from that of the first reviewer:
Wild 19: Lemmingdelica80 lemmings
Save 81% (65)
Release rate 1
4 minutes
2 climbers, 1 floater, 4 blockers, 30 builders, 2 bashers
Good: One of the few ONML levels that's always great fun to play one more time, because of the chaotic building and stopping all the gaps between the platforms. Sure, you
can block, but the absence of bombers deliberately discourages this. No dig pits, either.
Bad: Once you've got the crowd contained and the hero lemming isolated, the second half is less fun; in particular, judging the bridge to strike the green column high enough but not too high can be slightly frustrating.