I just had a chance to start last night for a little bit, so my team is nowhere near settled. However, having arrived at Violet City (pre-gym), I currently have:
Totodile level 10
Hoothoot level 5
Rattata level 5
Spinarak level 3
Geodude level 3
Gastly level ? (just caught it, don't remember)
I also have a Zubat in the PC that I'm rotating through. At this point, I'm starting to train up everything besides Totodile.
Of those, I think Totodile and Hoothoot will make my permanent team, like in my first Gold play through. Not sure what will happen with the others yet. Gastly might be fun to use, and I definitely want to pick up a Mareep when I have the chance. I'll probably end up dumping the rest of the team once I've evolved them.
I've also been having terrible luck with my poke balls for whatever reason, so now I'm down to one ball and less than $200 left on hand (though my mom has been storing my money, if I bother to get back to her). It's a strange feeling, as I've never had this problem on any Pokemon game I've played before. I guess it's time to earn some cash from the gym trainers, before I run into a shiny or something else I don't want to miss out on.