Does Etrigan deserve a solo series?

Which TPB or HC of Spider Man should I buy?

I think that Martian Manhunter is one of the most powerful beings in the DC universe,i mean look at his powers! Also i think he is one of the most tragic charachters in comic books.I like that finally he is gaining a lot of atte ntion because he deserved! J´onn J´onzz your the man ! Also about his powers ,he punched Superboy-Prime hard!

I read the last issue and it was phenomephal,esepecially the ending,but i think the Kaine actally died and not Peter.What do you think?