After looking around, comixology is the best option. No one is selling DRM free copies of comic books and comixology has a GREAT reader.
EDIT: COMIXOLOGY UPDATE
I had to send them my receipt to get them to server side unlock it. But they spent 2 days of my time telling me sign out and restart its your device. This is just upsetting.
I've requested some form of compensation because I bought the comic to read on a vacation and now I'm off and guess what not going to read it. Wasted money... I'll update as this resolves.
The guy who's been working with me, Andrew, who didn't tell me they needed a receipt till late in the game said that the reason I cannot be compensated was because I didn't send him the receipt till today. Funny thing is itunes only emailed it yesterday afternoon. Additionally I did not think forwarding the receipt was a requirement of my purchase. The time stamp on the receipt shows when I bought it... this is annoying.
To that end they haven't given me any sort of reason for what really happened or why I should expect it to not happen in an ongoing fashion. I'm not very happy right now.
I had a good conversation that went like this, I basically lost 10 dollars betting on your service. Bring me to the table again give me a reason to use your service...
Andrew responded agreeing it was a miserable experience but that if I loved comics I'd love their service. Thing is I've read all the free comics and didn't enjoy a purchased product at all. I will be working with google play I think.
If you guys have looked, google play is an interesting service. While they don't work with the best form of comic file type they work with PDF comics great assuming your file is setup well. I need to see what form of DRM is on their comic files though so to see if I can purchase there too.
I'll be experimenting further but I'm pretty sold on, not loving my ipad and getting a windows or android device.
My ipad, lags, has bad battery, crashes, freezes, doesn't work with files and stuff in a way I'm happy and is overly controlling. I'm in love with the product design outside of the software but that is about it. I've been fighting with this thing for a year now and I'm done.
Onwards and upwards