Oh he's up there (or down there as the case may be). There are not words for how much I hate that guy.
It almost doesn't seem sporting to count goons, because we know they suck at hockey. So I'll list them separately. Peter Worrell was the single worst skater I've ever seen on NHL ice. I cannot believe he made it to the big leagues skating like a drunken sailor. Eric Belanger got a penalty at Frozen Fury making fun of how ridiculously awkward he looked on the ice. But skill-wise even he didn't frustrate me as much as MacDermid did last year. I don't know if that was as much him sucking or Bednar insisting on using him as a goddamned defenseman. Chris McAllister, Francois Lerroux, and David Koci are other guys who come to mind who simply had no business being on the ice. And yes, I think Brad May counts under this.
Anyway, I also have a hard time counting the guys who had a cup of coffee and left. Riku Hahl was pretty bad, Mironov DGAF whatsoever, the bevy of career minor leaguers who came and went that one year like Jordan Krestanovich, Jeff Daw, etc.
As far as "skill" players go, I still rank Marty Skoula down there. The actual talent was there, and when he focused on defense he wasn't too bad, but the moment he thought he could be Ray Bourque and tried to create offense, it was turnover city, not to mention that he didn't just telegraph passes, he sent signal flares to the other team indicating when and where he was going to send the puck.
I think in terms of "worst" though I'm gonna say...Bates Battaglia. Clearly got carried by two vastly superior players on that infamous "BBC" line in Carolina, showed up in Colorado after being traded for a legit scorer in Radim Vrbata, and couldn't even hack it as a third liner. Absolutely atrocious player, so bad that Lacroix quickly realized his mistake and packaged him up with sucky prospect Jonas Johansson (not to be confused with sucky goalie Jonas Johansson) for Steve Konowalchuk. That move right there at least saved what could have been a disastrous season. Also,, I mentioned this before, he won the season of The Amazing Race that a very old friend of mine also competed in (she came in third) so that's another reason for me to be annoyed with him.