Which day should i go to Street Scene, San Diego based on just the bands?

Question

Friday:

Beck, Justice, TV On The Radio, Vampire Weekend, MGMT, Hot Chip, Diplo

Saturday:

Tegan & Sara, Cold War Kids, Ghostland Observatory, Does it offend you, yeah?, the black crowes, The National, Tokyo Police Club....

Answer 1

Both days are going to be packed and filled with fun. I guess you could pick several bands that you really want to see and go on that day. Personally, I'd rather see Beck, so I'd go on Friday...

Answer 2

This year is the first year in a long time that street scene will be good again.  It is back in the east village and both days are packed full of good bands.  I don't think you can go wrong no matter what day you go!