Speaking as an obsessed anal retentive hand-coder, I can't endorse with any level of enthusiasm any WYSIWYG package, because I know the nightmare of trying to manual tidy up the digusting mess of code they inevitably produce.
If you know nothing about HTML, and getting your first site online is more of a hobby than a critically urgent priority, I'd
strongly suggest skipping right to learning the HTML language yourself. You'll appreciate it in the long run rather than messing around with editors, and you'll have cut out the middle man and saved yourself a lot of time. If you're willing and able to do this, I strongly recommend a free tutorial site such as
www.htmlgoodies.com (by far the best I've ever personally come across - has ever level of tutorial, from "What the heck is HTML?!", to more complex frames, tables, Javascript, style sheets, and so on... I still occasionally refer back to it myself when I forget how to do some little things, and I've been designed websites for over six years!) to guide you along the way.
If, however, you have zero interest in learning how to actually code properly and just want to bang a website together as quickly and simply as possible without learning the mechanics of it, the best WYSIWYG editor I ever came across was Allaire HomeSite (possibly since bought out by Macromedia, if it still exists at all..?). Failing that, I didn't mind DreamWeaver so much for functionality, and if I HAD to use a package now for god knows what reason, it would probably be that. Personally, I wouldn't touch Frontpage with a thousand foot pole, but that's just me.
Just my two cents worth anyway, hope it helps.