The biggest I ever finished was JIM/Thor.I had everything up to around 2010 when I sold off the JIM.I still have the Thor through Vol.2 but don't care to do any newer stuff.
I have a full run of Captain Marvel including MSH 2 issues & a few crossovers.Smaller runs include Warlock,Dreadstar,Fish Police,Starslayer,Scout (Tim Truman),Rocketeer,original apperances,Epic Illustrated,Howard the Duck,Silver Surfer Vol.1-3 and assorted small 5 to 10 issue runs.
Working on the Teen Titans from the 1980's,Jon Sable,Master of Kung Fu(just need a few odd issues in the middle),Deadly Hands of Kung Fu,Avengers starting at the .15c mark to maybe 300,FF #100 up,Warlord,just a few, The Spirit Archives.
I also completed a Run of Pacific Comics,all the floppies & mags plus some of the catalogs & coming attraction stuff they put out.I would like to add the portfolios but a couple bring big bucks when you can find them. I started to do a Tower run but lost interest after maybe 10 issues.
If and when I finish some of these up I would like to start on a couple of themes.Marvel blue sky covers and the .25c Giants from Marvel 1971.