Trading in Sax for Bass, ok Guitar

In all my dorkness of highschool band, we always had parties after the football games. There was this band made up of at least one member of the marching band who played the parties here and there. All covers of pop songs of the time, rock. Bush, lots of Weezer (who are the ninja), and stuff. They weren't real good but man it looked fun. I had just begun dabbling with guitar very late in life, 11th grade methinks. I couldn't play but decided I wanted to play in a band. So my best friend FarmerJ and I came up with an idea, I would learn bass and he would learn guitar. I already had screwed around with bass slightly so we began. Now just like anything, practice is key. I played constantly much to the annoyance of my sister, and soon as I halfway had a pop song down, I would force her to watch me struggle to play it over and over. I know she hated it, but I do have her to thank for broadening my so called musical influences. Born in NC, I was all country til roughly 10th grade when my sister was really into rock, specifically the Smashing Pumpkins. And once I heard Siamese Dream, I was hooked. And Say it ain't so a la Weezer really got me hooked on the alternative rock scene and I left the country behind. And luckily for me, the bass lines in the current rock such as with Bush and Weezer was very simplistic so I thought I was hot potatoes really quick. Unfortunately, FarmerJ was struggling with guitar and thought bass was easier to pick up and we should trade. While I do agree that the very beginner level of bass is easier to achieve, I practiced my arse off and he wasn't as committed. But I picked up the guitar and began to attempt to play. Man, bar chords suck and my fingers never hurt so bad in all my life.