I saw the extended version.
I kept hearing many people didn't like it, but, I thought it was really good. Not perfect, but, still very good.
Pretty predictable though; I think everyone could've guessed the minute they heard the names of the 2 combatants that of course kryptonite was going to be used (lame), but, for being titled "Batman v Superman", a VERY small percentage of the over 3 hour long film was actually dedicated to them fighting. They had a quick and dirty fight, then predictably teamed up to fight someone else .....
And since when did Wonder Woman have an accent?