Episodes from Liberty City?

I've heard from a few people that have this game that Ballad of Gay Tony is more fun of the two, but is there one that I should play before the other from a story standpoint? 

Thanks in advance.

They all kind of tie in with the base GTA IV game at different points, but I wouldn't be too concerned about order.

yeah... i GTA 4 i preferred the BAllad of Gay Toney over LOst Souls but all three stories interwine in the game somehow or another

 Cool, any suggestions on where I could find a good list of what I need to do to get 100%?  :)

you mean as far as missions n all that or the story ?

 100% completion.  Like all the side jobs, collectibles, etc.  I have confidence I should be able to knock the missions out on my own.