Just based on the platforms alone, I say the VZ is better, being lighter, more compact, less recoil, more accurate.
That's based on my VZ-2008 vs a WASR & a Draco pistol.
AKs rule the roost on accessories & surplus mags. Want a drum? Buy an AK. Want over a dozen different options for grips, handguards/rails & stocks? AK.
The tabbed carrier thing is only for the Century built VZ-2008s, which were built from surplus kits & green mountain barrels by Century.
There's an intermittent trigger reset issue when the VZs were converted from FA to single shot. The genuine VZ-58s imported over here got a tabbed carrier as a fix, Century copied that for a while and got sued. So they modified the trigger so the tab wasn't needed. But some still occasionally wouldn't reset, which was the 'gremlin' you read about. Mine never did this but I had mine tabbed anyways for $60 by a great guy named Forced March, he's in the CZ forum.
Surplus VZ mags are still under $20 and available, and Fab Defense is making new polymer mags. No one has a 20 round mag at all and ban states have to make due with cut down 10 rounders that occasionally pop up on ebay. If your state has a problem with hi cap mags I'd pass on a VZ.
New VZ-58s aren't cheap, the only 'entry level' is the VZ-2008s that were selling new for $400 a few years ago that are now fetching $600-$700. Or about what an entry level AK fetches. But AK prices have bounced a lot over the past year, and will probably drop.
The only mods I've made to my VZ is a cone type flash hider, a heat shield in the hand guard, a rubber boot for the folding stock, tabbing the carrier & mounting a short pic rail on top of the beaver barf hand guards for a red dot. So less than $200 in mods, and IMHO that's all it needs (well, maybe a Ronin grip). I spent close to that adding a folding CNC/Bonesteel stock on my WASR and that's just the start of the money I've put in that.
Short answer, get both.