I've found when the dust settles on the more popular WG's, as it has for a while now, and their prices are within budget, that's the time to try and see them. You can then form your own opinion.
With UKE, there are a few interesting ones that don't seem to post on UKP, so that provides a good starting point for a fresh hotlist, mind you, will have to factor in the extra travelling or wait for them to tour nearby.