My favorite of the webcomic "I'm More Popular Than You Are" lists is . This particular site ranks not by raw votes or hits, but by the number of hits per update. It's a decent way to at least try to measure number of fans rather than number of votes.
However, since the rankings are VERY dynamic, I'm going to compare by another metric- the number of people who have the comic on their Favorites list. (And incidentally, if you haven't, go register and put the WLP webcomics you follow on your fave list. Go soon. Now would be nice.)
Anyway:
CHOCOLATE MILKMAID - favorite of 93 members
PETER IS THE WOLF - favorite of 71 members
MISADVENTURES OF CHICHI-CHAN - favorite of 45 members
STELLAR - favorite of 14 members
As a comparison, I looked up comics I have on my own favorites list...
QUESTIONABLE CONTENT - favorite of 561 members
PvP - favorite of 510 members
REAL LIFE - favorite of 395 members
SOMETHING POSITIVE - favorite of 337 members
EL GOONISH SHIVE - favorite of 307 members
SLUGGY FREELANCE - favorite of 302 members
GIRLY - favorite of 301 members
SPARKLING GENERATION VALKYRIE YUUKI - favorite of 224 members
WAPSI SQUARE - favorite of 220 members
CRAP I DREW ON MY LUNCH BREAK - favorite of 163 members
QUEEN OF WANDS - favorite of 146 members
KEVIN & KELL - favorite of 134 members
SABRINA ONLINE - favorite of 130 members
SCHLOCK MERCENARY - favorite of 119 members
THE WOTCH - favorite of 110 members
BLUE CRASH KIT - favorite of 109 members
CHECKERBOARD NIGHTMARE - favorite of 109 members
FREEFALL - favorite of 90 members
GIRL GENIUS - favorite of 77 members
LOWROAD - favorite of 75 members
MINE'S BIGGER! - favorite of 64 members
POLYMER CITY CHRONICLES - favorite of 39 members
CHEER - favorite of 35 members
SCANDAL SHEET - favorite of 31 members
SUPERMEGATOPIA - favorite of 29 members
FILIBUSTER - favorite of 17 members
DISASSEMBLANCE - favorite of 9 members*
NAOKO MURAGAMA - favorite of 3 members*
My conclusions: WLP's webcomics aren't at the very bottom, but we're a long, long, LONG way from the top.
Sigh.
* This is a definite injustice. Get on the ball, folks. }:-{D