anybody here used both of these programs? which is better? and why?

Thanks
Charles

I have used both and would choose depending on your client base and what features you need. This thread offers quite a few more opinions on the 2 pieces of software and also a quick search will provide you with thread after thread of this popular debate. http://www.webhostingtalk.com/showthread.php?s=&threadid=387543&highlight=whmap+vs+clientexec