In reply to Saor Alba: oh you wanted the best climbing website for you, then you already know the answer.
I nominate Mountain project because it has links showing news from 3 different sources and also has global coverage of routes and topo's. Add to this a forum that I use regularly and so far have never had a negative experience.
The best climbing website for me depends on where I'm going. If it was Scottish winter climbing I may take your recommendation but if I was doing anything else Scottish Winter would prove useless as a climbing website. Making it possibly the best in a small field, usable for a small part of the year. But the best climbing website? maybe the OP needs re-wording.