As much as I hate to say it since you've been spoiled with CH you're not going to be happy with anything else. Might as well go with new CH equipment and be done with it. I agree with you about how their design hasn't been updated in years but it's been proven to work so why change it?
If you want a fancier throttle you can always get an X52 and just use its throttle (you don't even have to plug the stick in for it to work). If you want a split throttle you can get a broken G940 setup and rewire it with a Bodnar board but yeah your options are pretty much limited. Unless you're willing to pay thousands there are only a few decent options out there...
I have them all laid out in my FLIGHT CENTRAL STORE
if you need to compare pricing.