My 25 year old comes in from Boston tomorrow to 30th St station and my 23 year old, who just graduated from college last week will be joining us for dinner in Phila. We're from Chester County and not too familiar with Phila restaurants. Can you recommend some places that 1) no reservation required 2) cuisine that two twenty somethings would enjoy and 3) alcohol preferred as we want to celebrate his graduation and 4) no dress code as they will be in jeans. I'm a foodie and always want to eat at quality restaurants but they would much rather eat the food they prefer and fun atmosphere (nothing stuffy). Their tastes are varied but not exotic.