* There are no "solopwnmobiles" in EVE. Everything you can fly blows up if it's shot hard enough.
* All other things being equal (experience, skills), superior numbers more often win a fight rather than superior ship value. However, things are hardly ever equal.
* There is no such thing as "a fair fight" or "an unfair fight". There's only "a fight". Circumstances are irrelevant.
* Somebody, somewhere has better skills as you have, more experience as you have, is smarter than you, has more friends as you do and can stay online longer. Just pray he's not out to get you.
* Just because you CAN fly something doesn't mean you SHOULD.
* With enough skills and experience, ship size really doesn't matter all that much.