No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
A small sample is never sufficient for determining a trend. For example, if you look at prior threads you'll find many that have TU lagging behind the others. The CRA's vary in terms of how quickly they update and that's really the only generalization that can be made.
Scoring -- at least with FICO's -- is irrelevant. The CRA's do not generate FICO's. FICO does based on CRA data. FICO uses whatever data is in your report. They have no impact on how your reports update.