MMORPG-FREE2PLAY.COM does look easier to read - but using hyphens can make promoting the domain more difficult when having to explain the URL to potential visitors etc.
I think i should use both and use the one with (-) hyphen as the main one. As for the other one, I will redirect to the hyphen one.
Yes you are right MMORPG-FREE2PLAY.COM is easier to read but Search engine give preference to MMORPGFREE2PLAY.COM
The One IWth the Hyphen Is best but you really want to keep the domains as short as you can long word are A NO NO.....