Re: Is there an ultimate tube screamer?
I think the best option for you is to take your guitar and amp head into a shop that stocks dozens of OD and boost pedals. Don't go there to stroke them, go with money ready to spend. Keep plugging in different ones till you're ready to pull the money out.
There's no good and bad OD's, within reason. Their purpose is to meld with your amp's tone. That's why online clips only give you a vague idea of whether you'll like it or not. And most online clips are plugged straight into a clean amp, not how you're going to use it.
Once you play enough of them into your amp, you'll know exactly what you like and don't like.