ive ridden 3 racing coasters...
The Racer at Kennywood
Gemini at Cedar Point
Dueling Dragons at Universal Studios Orlando
i love the Racer, (hometown favorite)
ive ridden close to 100 times (im 50, so thats at least twice on each visit, 1 or 2 visits a summer, for the last 40 or so years)
the other 2 were great, but ive only ridden on them a few times each so cant really remember with clarity what they were like (Gemini was about 24 years ago and only one visit to Islands of Adventure so far)