My opinions on 1.9:
-Shields are cool, but more could have been done with them (dying the wood shields and having diamond, iron, etc shields)
-Dual Wield is kind of cool, but uneccesary and is making minecraft like a crappy run down version of a mod pack made official
-End crap, kind of cool, I don't care much for the end. The new end brick is a cool texture and can be used in many maps.
-Natural crap, beetroots are not bad, but it why are beet roots needed to survive in minecraft other than for the sake of having beet roots. There is already stew and many other foods. Grass path is a cool addition.
-Potion Arrows/Spectral Arrows, most retarded idea since fireworks. This game is for mining, crafting, and surviving. Why the fuck did they decide to make magic x-ray arrows that show living things through walls. And who would ever put a potion on an arrow. That is completelty uselss. You can just throw a splash potion. "Im goana og shout mi friwend wiht a arow to gieve him strenthng potaton" No. The only exception is poison arrows. And instant damage is stupid because arrows already do damage, no need for them to do more.
-New pvp system is ok, but it is honestly a stupid thing to add right now. I am fine with the current pvp, and no matter what you scrubs say - the old pvp was more than just spam clicking. There was some skill involved.
-Skeleton Riders, mobs aren't supposed to be organized and summoned in (other than the bosses like the witer). They just spawn and you fight em, none of this bull crap magic lighnting. Like who the fuck thought "lets make skeletons appear out of thin air on skeleton horses when lightning strikes" was a good idea and was so important that it had to be added in a 2 year awaited update.
-The other stuff I don't care about and isn't good or bad