So much misinformation in this thread I don't even know where to begin.
Simple answer...any real engineer will tell you it makes no difference. Anyone rambling about what makes one superior more than likely isn't able to do a real mix on either. Any multitrack recording software on the market(Logic, Reason, Studio One, Reaper, Cubase, Sonar, Pro Tools, Samplitude, Audition, FL, ect)is capable of giving you a quality mix. "Better" isn't a difinitive word. Some people can get a "better" mix using stock plugs than others can with thousands of dollars worth of 3rd party plugs. Some people can get a "better" mix off a laptop than others can get in a fully stocked recording facility.
Anyone telling you a tool is "better" than another more than likely relies too much on their tools making them the guys I'm referring to.
If a compitent engineer mixed the same song in all the DAWs across the board...every mix would come with it's own amazing quality based on the tools he had at his disposal leaving "better" to be an opinionated statement.