The only thing I would caution against with a Smittybilt X3 is difficulty pulling line. For some reason they have quite a bit of resistance on the spool out, and the lower gearing you have in it the worse it will be. I think it was Hugh's Jeep that had an X3 and I was pretty surprised what a pain in the butt pulling line was. If that isn't an issue for you, I don't think anything else will be.
The only WARN I don't like is the Zeon Platinum after having one on my last rig. Take that with a grain of salt as Scott has one and likes his, but for me I found it unforgivable that for a device meant to rescue you when things go to hell that they have a wireless remote that can't be truly turned off so unless you are very good about charging it before every trip you will find that when you need it that the battery is dead. You can't just replace the batteries or take the out either. With such an unreliable system you would think that you could just plug in your manual backup winch controller like on every other system with a wireless remote, but on the Zeon Platinum there is no ability to put a wired remote on, so you are just stuck.
I like how a lot of warn winches perform but was so disappointed with that Zeon I bought that I switched brands this time rather than give them more of my money.