I have 7 characters.
Paladin - Was playing a Smite based Paladin using Healing Hands for survivability. Nerfed into the ground, expected, but regardless, absolutely gutted to the point where that character I expect isn’t viable any longer.
Necromancer - Was playing a fire based “zoo” necromancer with skeletons, skeleton mages, golems, volatile zombies, and infernal shade. I got a buff to the HP of Skeletons and Skeleton Mages but they weren’t dying anyway, and with Impatience getting removed I lose 1/2 the ROF on Skeleton Archers firing off Fire Arrows. All told, a major nerf.
Druid - Been playing around with a few different builds here, Spirit Thorns Spriggan and Werebear (lightning or physical) being the primary ones. Warcry’s cooldown was massively increased, and the Boar passive being locked away means survivability drops significantly. All told, a major nerf.
Sorcerer - Running a Meteor / Spreading Flames Sorc. Huge buff in damage from the mastery change. Significant increases in ward generation. Specific buffs to Spreading Flames insteractions. Got buffed by a fair amount.
Marksman - Running a Puncture / Hail of Arrows bleed build. The concentration change is actually a nerf for that character. Barbed arrows looks like it could be a buff. Nothing else has really changed for that character, who was struggling mightily compared to everyone else. Overall, neutral.
Runemaster - Was running a Glacier / Frost Wall Cold DOT Runemaster. Significant drops in ward generation and reductions in freeze chance mean it’s massively nerfed, caught up in the crossfire of Frost Claw Runemaster even though that wasn’t my build.
Spellblade - Playing a Fire Aura stacking Flame Reave Spellblade. The Flame Walker helps max fire res shred and frees up a blessing, thus a buff. The Incinerating Aura change is a major nerf at his current Int level. Huge reductions in Ward generation across the board, less optimal passive point usage needed to replace the survivability losses, all told a nerf.
So, across 7 characters, you have 5 which were nerfed, one which is mostly neutral and might have a small buff, and one which received significant buffs. Ironically the buffed character was my 2nd strongest, but it was not popular and thus the buffs. I expect to see a lot of meteor / spreading flame sorcs next cycle, and I expect it to be nerfed into the ground afterwards.
Regardless, my point is this: Yes, there are buffs. Yes, some builds were buffed. But based on what I’m seeing, it’s far more likely that a given character and build was nerfed than it is that it was buffed, even if it’s off meta.