For a twin band HT I liked my Alinco DJ 580, it was a monster of a HT, but the battery lasted forever, and there was enough metal in the case to handle the Crossband repeat duty. I used to put the thing in cross band mode in the car while camping on the 13v volt power cord, and use it to talk back down to the valley with a little DJ F1T.
2 meters to the car, then 440 down the hill, worked great.
I now have aYaesu VX5R, tribander, 6 meters is almost useless in it with a portable antenna, but it works fine on 2 meters and 440. The only thing is with these Micro HT`s there is not enough case there to soak up the heat in high duty cycles.....the thing can turn into a real hand warmer if you stay on it for a while.
73
Jeff