Ships & Modules

o/

Hey guys, my main personal goal in EvE at the moment is to turn the widow into an "assassin" PvP ship utilizing its E-war
capabilities by not letting them warp, move, or lock onto me. Making them completely helpless. But I'm still new to eve online and was wondering what these 3 ships were specifically built for and what they can do, and what the differences between them are. Not just the bonuses. What I should look for when fitting them for my specific needs. (All I know about the widow is it was built to light a cyno and the get the **** out). But I want to make it more. Will I need a tackler or a tanker (even thought they wont be able to lock.)

In summery just as much information you can give me about these 3 ships, what they were built for, what they can do
and what the differences are, benefits and losses including. Maximum info.


Just another question...

What are the different type of ship classes for, what are their roles in detail? And what types of ships are weak or
"counter" each other. (Frigate, battleship, etc)

Thanks for the help!

o7