Mine was brushfire, probably the worst deck ever of the base set starters, but I loved it. I eventually went on to run a water/fire deck with charizard and blastoise as my two main attackers, oh how well that deck did.
Err, the on in Delta Species Salamence one (sorry, sudden memory lost and forgot the name). And I can remember the day I bought it!! 25th December 2004!!
The first deck I got was the original strater deck (the one with Machamp). The first theme deck was Blackout (that was the one with Hitmonchan, wasn't it?).