Awww Sandra, my favourite topic
As I've burned through most of the big UK hosters over the years, can happily provide you with a "don't touch with a barge pole" list.
If you want bombproof hosting, with first class support, then in my opinion there is only one place to go at the moment.
Rackspace US owned, but worldwide, data centres, including 4 in the UK.
Maybe pricey, but they are very good. Very impressed with the techies, and serviced received.
If I stay outage free, then saving 24 hours of downtime in 12 months more than makes up for any savings I could have found with muppet and muppet hosting company.
Can only speak for their dedicated servers. Have also got some cloud stuff with them, but only small scale so not a big enough test to prove either way. But if you are a Cloud fan, then it is a very cheap alternative.
I'm just an old techie cynic, and yet to be convinced on anybodies implementation and version of "the cloud", other than places like cobweb which host our exchange email, which then makes perfect sense.
Don't start me on ropey VPS servers like this one thumbsdown