Greatest Manga Series

[LumRanmaYasha]

Wow, another great round!

Hunter X Hunter - In my top ten favorite manga list. Inconsistent as a whole, unfortunately, but nonetheless it shines at it's best in terms of story and character development, and I'd say you'd be hard pressed to find smarter fights than the ones in this in any other manga in the shonen demographic.
Rurouni Kenshin - I've been loving the story so far, but I've only read ten volumes, and while I do like what I've read, right now I wouldn't say I feel stronger about it than Hunter X Hunter.
Hikaru no Go - I've been re-reading it after many years, and am honestly a little underwhelmed at the beginning volumes. Still, I know where things are going, and the journey is still great, but whether I'll consider it a favorite of mine ultimately remains unsure.
Apollo's Song- Tezuka's manga are awesome, but I haven't read this beyond a couple chapters yet, so I have to put it last by default.

[VLordGTZ]

Tough round

Hunter x Hunter
Hikaru no Go
Rurouni Kenshin
Appolo's Song - I haven't read that much of this manga.

[Foggle]

Gonna' have to pass this time.

[Spark Of Spirit]

Same as Pharass.

[Dr. Ensatsu-ken]

Rurouni Kenshin (My favorite manga of all-time, so ranking this first is a no-brainer for me)
Hunter X Hunter (Despite it's inconsistencies, it's still a great manga, and far better than anything currently running in WSJ)
Hikaru No Go (A very addicting and entertaining kid's manga)
Apollo's Song (I haven't read that much of it, but I do like what I've read; It's no Black Jack, though)

[gunswordfist]

Rurouni Kenshin - My favorite manga and now I like Kenshin even more.
Hunter X Hunter - I finished Greed Island in the anime early yesterday morning.
HNG
Apollo Creed

[Pharass]

Time for the results:

Apollo's Song: 8 pts
Rurouni Kenshin: 21 pts
Hikaru No Go: 15 pts
Hunter x Hunter: 16 pts

Rurouni Kenshin and Hunter X Hunter proceed to round 2.

Stay tuned for the next match.

[Pharass]

Round 2, Match 5:

Excel Saga



Vs

Dragon Ball



Vs

Cromartie High School



Vs

Great Teacher Onizuka



--------------

Dragon Ball
Excel Saga
GTO
Cromartie High

[Foggle]

Someone's trying to get on my good side.

Excel Saga
GTO
Cromartie
Dragon Ball

[VLordGTZ]

Dragon Ball
Excel Saga
GTO
Cromartie

[LumRanmaYasha]

Excel Saga - 2nd Favorite Manga. I dare you to find a smarter, well-crafted, and well-cast manga comedy.
Dragonball - 3rd Favorite Manga, and the single most influential work of fiction on my life ever. 
Great Teacher Onizuka - Onizuka is one of the greatest manga characters ever.  8)
Cromartie High School - Hilarious...but I've only read a few chapters, whereas I've read the full runs of all of the other three mangas (well, not completely with Excel Saga, of course, since the last volume hasn't been released in the States yet). 

[Foggle]

Excel Saga - 2nd Favorite Manga. I dare you to find a smarter, well-crafted, and well-cast manga comedy.

[Dr. Ensatsu-ken]

Dragon Ball (Classic)
Excel Saga (Just started reading volume 3)
Great Teacher Onizuka (It's great, though the last 3rd of the manga dips just a little bit in quality)
Cromartie High School (Pretty amusing from what I read of it)

This was a tough round. I'm sure Cromartie is great, but I haven't read enough of it yet to properly compare it to the other 3 entries, admittedly, but those other 3 entries are some of the best manga I've ever read (even Excel Saga, which I'm still early on in), so it was hard to rank one over the other, but I decided to go with how I felt about them at this given time.

[gunswordfist]

GTO
DB
Cromartie
ES

I've read none of these.

[LumRanmaYasha]

Dragonball
GTO
Cromartie
ES

I've read none of these.