I have used MS Money for the last 8 years. I like how the newer version can correlate with my bank. That way if I have forgotten to type in a receipt, it does it for me. I have only used Quicken for business items, like invoices. I didn't like Quicken for personal finances. My brother in law couldn't get MS Money to work on his computer so he has to use Quicken.
So I guess a lot depends on your computer and what version of MS Office you have OR don't have. For my brother in law MS Money won't work with Vista on his computer. However, for me, it works fine.
Give Quicken a try and then compare. That way you have used both and you will have a better, informed opinion. Most people use one or the other so an opinion about one may be more than for the other.
Good Luck.