I used Rapidweaver for about 1.5 years, but eventually switched to iWeb. The pages in iWeb look SO much better in my opinion.
However, iWeb sites were a pain to upload. Have to publish to a folder, then upload to an FTP server... and for whatever reason, half the time many to most of the pages wouldn't properly upload.
I've been thinking of going back to Rapidweaver until Apple let's us upload to non-.Mac sites....