Good qualities would include a low, wide-track landing gear, good ground handling, and an effective rudder. You must also have the piloting skills to use that rudder! Going by the jets I have, my Bandit handles the crosswind the best, with the BobCat a close second. My MiG has the wide stance, and other qualities, but if the MiG is landed rough it will break the LG mounts in the wing, so I often won't fly it if the crosswind is strong. When it was my only jet I flew it often in strong wind, I just don't need to now.

The HotSpot also seems to handle X-wind well, and from what I have seen is an awfully robust model.

Models that seem tough to handle in a x-wind, at least from what I have seen, are the 'Roo, F-16's, especially the smaller ones like a BVM or Yellow, A-4's because of the tall, narrow landing gear. The Fiberclassics F-86 I flew some was a handful in a x-wind. YMMV

But one point, piloting can go a long way to making nearly anything handle the wind!