I've been through all the cheaper brands (and a couple of the more expensive ones) over the years and last year took the plunge and bought some Costa Del Mar 580G's. They're not just a bit better than the others, they're a million miles ahead IMO.
Not cheap, but defo the most effective. Even the plastic lens ones (580P) were better than anything else I've tried, but the 580G's (glass lenses) are on a completely different level. If you truly aren't bothered about cost go and find a stockist and try them - I almost guarantee you'll but them on the spot.
They're made for angling where most of the other top end brands are not.
p.s. the lifetime warranty makes the cost a little easier to swallow.