If I wasn't in a pathfinder game with the DM of the year (in my opinion, its up in the air for others, though some of you seem to like his ideas for his world) I wouldn't play it. It rolls on making the game too easy, removing most challenges. As a ranger, pretty much if anything I fight is my favored enemy at level 20, they save or die every time I hit them (and I can hit 4 times right now just at level 6, and I'm on my way to getting 5). Change that to WHATEVER I'M FIGHTING for a slayer and its broken as hell.
The one thing I wished they would do for pathfinder is finish the warlock page. Its pretty much the aborted fetus laying on the site I use
Damage reduction / common thing
Is probably something that has always rubbed me the wrong way.
In 5e at LEAST damage reduction/magic is something that could conceivably pop up (and as such they REALLY improved it)...
But in 3.5 unless you were at incredibly low levels... you had a magic weapon.
It made it feel very pointless.
I actually liked Damage reduction / Blank. The monster was resistant to weak blows and could conceivably shrug off minimal rolls.. as well in 4e they had multiple ways to get through damage reduction.
Damage Reduction/Magic really might as well not exist... the ONLY things that proxy that are physical spells.
To be fair, in 5e, they made resistances do half damage right off the bat, which makes barbarian the best class in the game as a solo fighter in the early game with rage. Throw in that some lower level challenges/boss monsters have immunities (which would've spelled the death of many of my party members if I didn't make the werebear they were planning on fighting only resistant to it, they would've all died cause no one but the barbarian had silver and the paladin ran out of spell uses, and the only casters were the sorcerer and the bard who was tied up and in werewolf form). This also lead to the party killing CR 5 werebear who only survived one round because the sorcerer did half his HP and the barbarian did the other half anyway.
One thing I like i 5e that I saw so far is the DM handbook and the PHB have finally shed some light on downtime activities and what they can do, as well as having things not as stupidly cheap as usual (example: 4e platemail is 50gp and cna be bought right off the bat, making the first level paladin with a heavy shield have such a high AC that in order to hit him I had to include enemies that targeted will/reflex/fort defences). Its much more balenced in 4e, but they also made it so that money isn't inflated to hell and back, so I fucked up and gave the party the amonut of gold you'd get in a 4e game, but they have so much money now that looking in the DMG and the PHB they can afford enough housing at level 4 to own their own households. So I decided I'm secretly gonig to have a problem in my world be is someone is summoning fools gold (like the ritual) and found a way to extend its duration. So after some time, the party is going to randomly lose money at certain points of the adventure and have to deal with this problem. Once they fix this, there's going to be a big depression in this world as no one has real money anymore and then I can finally fix the economy