I'd heard so much about Minerva being the will of the life stream etc and how she is much stronger than any of the Weapons were but I have to say

THAT was not what I expected.

Reading the guides on GameFAQS it seemed like there was alot of preparation in fighting her. It was so easy! My set up is 99k HP, max stats with Zeidrich Genji Armor and Genji Help + that item that breaks damage limit or hp limit i dont remember.

I had no trouble with Minerva at all, I just costly punched her until she disappeared. All of her attacks did 20k damage at max (except for Ultima and her limit) I did have to keep reusing Phoenix Downs but I only died 3 or 4 times.

I am not disappointed though, she was a fun boss and you do become stupidly godly in Crisis Core so it is to be expected, I just thought loads of people found it hard to fight her? That was my first and last attempt.

Is Crisis Core a good game ? Worth it?

On what difficulty did you fight her? That battle was pretty much just following her patterns (dodging her attacks), she doesn't do anything unpredictable.
But the battle is quite long, so you can lose patience and concentration which is basically the key here. I fought her on hard mode, dunno what's she like in normal.

Same question with darkshade, is it worth buying psp+the game? Since im kinda sceptic about the "new" combat system, i liked the old one^^, is it now like Tekken or do you actually have to know how to play?

The new battle system is amazing, easily the best battle system final fantasy has offered yet. It allows complete control in the battle field and actually requires some skill with dodging

It's the reason i bought my PSP two years ago.