Living in Oklahoma, I'm in the same boat. Snow, tornadoes, and 100°+ days all in one week would not be surprising.
After looking at all the options (I stuck with "frameless" tops, because I like the look), I ended up dropping the cash on an Off Road Heroes
Fastback. It's made up of 5 independent "panels":
1 from the windshield to the sound bar
1 from the sound bar to the rear of the OEM "roll bar"
2 rear side windows
1 rear window
You can remove any of the "panels" individually or remove them all to achieve whatever coverage you want.
He also makes a Cargo Top, which gets you essentially a tonneau and windjammer, but it's actually weatherproof (unlike the Windjammer, AFAIK
). If you want the best of both worlds, order the Multi-Top which, just as it sounds, includes both top setups.
I ordered my Fastback in mid-January and was advised 6-8 weeks for delivery (I understand they're made-to-order more or less by hand). As soon as it comes in and the Oklahoma weather appears to start cooperating, I'll get it installed and intend to post a review.