With the new update, I could really use about double the enhancement points. Here's what I'm considering.
I'm a ninja spy, lvl 15. I took (along with the prereqs) ninja 2, ToD, unbalancing strike, halfling cunning/guile 3, crane 2, and t3 wind. I actually use fire stance most of the time because I really need the ki, but I was wondering if it's worth the enhancement points to get the higher fire stances. I don't think I'd use the fire strikes that much. I could instead take the void strikes and/or earth (I have the con for grandmaster earth), but it seems odd staying in the first tier of fire stance while taking all those other things. If I had the points, I'd also love to take hero's companion also, but I don't think I can fit it in.
I've heard the ki situation actually gets better when mobs start having massive hp and a stunned mob fills your bar, but I'm not there yet. Without fire I don't seem to have enough for ToD, stuns, QP, and so on.