What exhaust??

Its no doubt been asked loads of times, so sorry if its been more than covered.

After changing the exhaust (as soon as I can talk the other half round),
and i'd just assumed miltek would be the way to go.

But a bit worrying about the posts on here about miltek quality, so thought id ask the question?

What would be the best exhaust for:

Sound
Quality
Gains
Price

And what would be the best all rounder?