Even with the changes, I won't go back to tanking. Way too much of a bore for me despite the slightly higher (but not great) damage output & higher max HP/DEF/Armor. I love being a fury warrior & tearing through mobs, which the new patch greatly decreases the amount of time to do.
Look up my warrior if you'd like on wowarmory.com
Shadowfyre - Glory of War - Lightning's Blade
Right before the patch I was going to respec back into fury/arms because you're right, tanking (prot) was so boring! But no, I love it now.
I haven't tried fury/arms since the patch so I can't comment on the differences in damage in relation to prot but "slightly higher damage output" compared to how it used to be is a gross understatement.
I tried to solo a level 63 elite when I was level 64 before the patch and used EVERY trick in the book. Stamina scroll, Mongoose pot, greater defense pot, the little yeti pet that fights for you. Shield Wall and Last Stand were up and ready to be used. I had major healing potions ready. I had a Lifestone equipped for the little bit of extra healing I could get.
Went to battle stance, charged, went to defensive stance and started brawling. I got it to half before all my tricks were used up and I entered the spirit world as a wisp.
Tried it again after the patch and I was level 65 and killed the same elite without the pots and the pet and the scroll. The elite lay dead at my feet and I never once used a healing pot.
So I immediately went and killed the Drillmaster in Hellfire and then killed 5 Colossus. The Colossus gave me some trouble but I still did it.
Their damage output is SO MUCH better than pre-patch it's not even a comparison.
I really want to try out dual wielding two handed swords at some point because thats how I began(DWing) and it sounds like hella fun.