@Julia I really like the Regal Tip Jazz and use them most of the time. The Zildjian John Riley's are great, but the tips wear too quickly for me - and I'm not a hard hitter. If you ever get into brushes, I'd recommend the Vic Firth Heritage Brush (HB). For softer rock and train beats I like the Regal Tip Fat Cats. Funny, from my late teens and into my mid-20's (when I was most active playing) I used Regal Tip 5B Nylon Tips- that was it, no muss no fuss.
If you do go looking for "the" stick, I've found that, at least for me, the most important factor is the length of the stick. I gravitate towards 16". I've used shorter and longer, but they never felt quite right. They can be really thin or thick, but if they're 16" I can rely on the balance and feel.