Aviva / Equity Red Star

I'm switching insurers, the only two who come up with reasonable numbers are Aviva and Equity Red Star.

Haven't heard of either really, the reviews I've read arent great, but then I've read crap reviews of my current insurers who I've found to be really good, so I sort've figure people only go and make a comment if they've had a bad experience.

Tried Bennetts/Carole Nash and all the usual suspects with ridiculous quotes so I'm down to few options.

Any thoughts?