As a person who didnt start with an AR and doesnt have 20 years worth of practice to cloud my judgment, The Tavor is amazing. The ONLY drawback to its ergonomic layout VS an AR IMO is that you cant see the magwell as easily so verifying where your slamming the mag isnt as easy. BUT... I find WHERE the magwel is to be much easier to get to and much faster.I spent my first few years with a VZ58 and I loved it too. If I could own one other rifle at the moment, it would be another VZ. But its a bit heavy and getting a decent optics mounting system is both expensive and even heavier. That was the ONLY thing I didnt like about my VZ. And the fact that the .223 model is known for reliability issues... if you dont want to shoot 7.62 I dont think a VZ is a good choice.
If your having mag issues with your Tavor you might want to try different mags. Ive been running 10 round LAR mags and have, on VERY rare occasions, had the bolt fail to hold open on the last round. With my Pmags (gen 3) ive never had the bolt fail to lock open... EVER. My Gen 3's drop free as well so (LARs do also) so using the fast mag change method described above (back of your strong hand to drop the mag while reaching for the new mag) is extremely fast.
I will say this about the Tavor, if your trying to load a full mag on a closed bolt... your in for a bad time. I dont know why it would be any different than any other gun but even my Pmags that hold 5.5 rounds will NOT seat on a closed bolt. The process for holding the bolt open is just pointless so, all this is to simply agree that bolt hold open issues on a Tavor can result in alot of time wasted. Would it make me second guess choosing my Tavor as an SHTF gun... not a chance. Its my go to gun for everything. But its not perfect. with that said, the AR isnt perfect either.
Charging an AR is annoying. I hate where the handle is and its not nearly as easy to grab with gloves on as it should be (yes, my AR has an extended latch). Anyone ive known with an AR has experienced reliability issues if they dont keep it extremely clean. To me, this is a big negative for any SHTF gun. If your competing you should be starting each day with a clean gun anyway so thats not an issue but, lets say the world ends and your stuck out in the wilderness for weeks at a time... do you want to worry about having to clean your gun all the time? The Tavor could go weeks with out a cleaning and still function fine. The AR, not so much. A VZ is like a Tavor in this respect. They run dirty or clean, no matter what.
I did just build my first AR. Ill be using it and practicing with it right along side my Tavor so I guess ill see if its better or not.