I'm sure others will throw out their opinions, so let me start with mine; in the 'old school' world, the RS PRO-43 is generally considered the king. The PRO-64 is another good one, as I understand it. I understand the AOR 8200 is quite good in this band as well. To me, at least, the Icom handhelds scan much too slowly to be useful.
Slightly newer, the BC250, BC296 and 396 all have good reps as milair scanners. The PRO-97 is also supposed to be very good as well. The jury is out on the new GRE scanners, and we'll have to wait to determine how well - or poorly - they perform.
Something you might want to consider is how you want to be able to use whatever it is you buy. Generally speaking, while they perform well, the RS handhelds have a serious flaw; they can't be used for logging and recording audio while scanning. It's not in their firmware. In other words, you can't set the radio up for scanning, and come back to get a log of hits with frequency, alpha tag and audio. You either have to physically be there, or use recording software on a single channel at a time (or have some sort of hard cross reference so that the audio that is recorded only on a few channels at a time).
So if you want to be able to do that kind of logging, don't look at RS handhelds.
73s Mike