In reply to mh554:
It totally depends on your foot shape and what you're looking for from the shoe.
Beginner= pretty much whatever fits at the lower price points (£75 and lower). Go for a fairly flat toed fit.
Progressing= Sportiva Miura VS, 5.10 Anasazi, Scarpa Vapor velcro, all good if you want something pretty precise (mostly priced at around £115-£125). Size as small as you feel happy with.
Sport/Bouldering= Sportiva solution, Scarpa Instinct or Stix V2, 5.10 Dragon or Team, Evolv Shaman. (£120-£130). Go as small as possible and 'stretch' to fit.
In my experience(10 years in retail), all the brands have their ups and downs. I haven't seen more returns on any one brand over another from a quality perspective and in the end, its what fits you.
Definitely, definitely, definitely try them on before you buy.