I must confess, I haven't done much with the fortress. After starting I realized that I usually have some overarching plan for my fort, but with Ticktorch I just don't have one.
I think I'll seal everyone inside while starting them on the construction of a tower into the sky, for storage space... A tower jutting out from the side of the mountain, of course.
Note that by 'seal everyone inside' I mean 'use a 1x3 tile no-traffic zone to keep them from wandering outside'. I'm not actually going to seal the fortress.
Incidentally, if one of you had had just two guys from your first migration wave sparring the whole time, their stats would already be maxed out and they could single-handedly take on multiple ambushes...
Among many strange managerial behaviors, however, I'm only going to complain about one: why, oh why, did one of you leave every tree in the top half of the map over several z-levels marked to be cut down? Just... Why? It took me about a half an hour to find all the pre-existing tree designations so I could get the damn woodcutter to remove one tree that was in my way. Every time I cleared a swath of designations, he took off in some new direction across the map...
Edit: Ok, now my main complaint is just that dwarves are suicidally retarded. I've never really dealt with ambushes before without having two superdwarves there to mangle them. I can kind of see how it's easy to lose a lot of dwarves...