Both slightly overrated imo despite being very good players at time, stats reflect this a bit compared to messi & ronaldo who score and/or assist at least every game
Zz 723 apps 143 goals (1 goal in 5) 92 assists
Db 714 apps 122 goals 143 assists
Similar stats not sure if zz took all set pieces like db did tho for extra stats.
Both not lightening quick but zz very gifted right foot, never saw him kick with left, ideal on left of front 3 these days, it was more 442 then tho so maybe would be better now stat wise!
Db less gifted right foot but worked very hard on it and fitness too to max out his ability, more a right of midfield 3 player covering ground, never could beat a man or get you up pitch in 442 but great team player.
Great with a proper winger in giggs on left but pedestrian midfield with db on right without proper left footed winger in 442 (as england saw with so called golden generation)
To me db is almost as good as de bruyne but less injury prone, both db and zz would slot into man citys team nicely.
Zidane like luis figo/ronaldinho/coutinho/ hazard etc, less mobile but more offensive in last 3rd, more flair and more naturally gifted.
Different types of player, you need a mixture of both ideally.
More direct comparisons imo are e.g
Beckham vs gerrard vs scholes vs lampard vs de bruyne
Zidane vs ronaldinho vs luis figo vs hazard vs coutinho vs messi vs ronaldo vs maradona!
Based on better stats and teamwork however would take db by a whisker, but with all media posing etc would change mi mind and go zz