People often say that GNB is like a DPS (specifically a Melee DPS, I'd think?) that just happens to be a Tank. I like GNB most of the Tanks. It's the easiest to me for whatever reason. No upkeep buff, no upkeep DoT (yes, there are two, but you use them on CD, so there's not an upkeep argument), and there's no numeric Job Gauge like WAR's Beast Gauge where different abilities give different amounts and there are abilities that can give more of it (Infuriate, Inner Release giving 3x free uses), and modifiers for those (using spenders reduces the CD of Infuriate).
By contrast, GNB is just...simple. Complete combo, get point. Have 3 points when that little No Mercy is about to come off CD. Use mini-burst combo every time it's up (30 sec), use charge dump when you're about to cap, roll through No Mercy, Gnashing, Continuation, Double Down, Bow Shock, Sonic Break, Blasting Zone, finish GF combo, and if Bloodfest is up, pop it and dump the rest into Burst Strikes (if not, just roll back into your standard combo), and throw in your two Rough Divides if you don't need to save one for movement later.
Something about that is just...simple to me, despite being a few more buttons. I think because it's the same every time where WAR's rotation is slightly contextual (how far has Infuriate drifted to the left by having its CD reduced, do you need to refresh Storm's Eye, etc). GNB on paper has a lot of oGCD weaves...but only 4 buttons (because Continuation is the same button over and over), 5 if Bloodfest, so it doesn't feel like weaving all over the place (my brain may handle defensive CD data differently, though...that is, it doesn't weigh on the stack of "rotational" data somehow.)
In any case, I'm looking for a Melee that plays kind of like GNB. Simple upkeep rotation, simple gauge (ideally non-numeric), burst that's straightforward and largely locked to a timer, few oGCD weaves/oGCD weaves that are simple(?) to execute, no procs, no upkeep buffs/debuffs/DoTs to juggle, and a rotation that's more or less rigid so you just cycle through it without it taking up a lot of mental energy so you can focus on other things like fight mechanics or ensuring upcoming burst aligns.
I haven't really played any of the Melee, so are there any that work like this?
I tried NIN, but it feels more like WAR. And I tried MNK some, but it...is...different.