Most of the time Strasburg is awesome in OOTP. I had one sequence though where he never made it past a #2 starter, granted my pitching was pretty stacked, he kept at #2 for about a month and half and than his control dropped all the way down to 1 after a 2 week DL stint. I traded him immediately after before he got scouted but he struggled to keep his ERA below 4 after that injury.
Zimmermann can be a badass sometimes too.
It doesn't happen often but sometimes Ballestar turns into a dominant front line starter although he is always stuck behind Stasburg.
I cannot wait for the new version, I'm playing fictional because the teams I like to play have gotten too predictable.