In my classes with seating charts, the professor passed around a blank chart and we all filled it in. We were called on in a random kind of order, I don't think what you said would apply unless the professor had real pronunciation problems...
I think where a person sits is more important. In my experience if you sit in the front row you can take at least the first 4-6 weeks off.
-)) yes, that is so true! my last name is 4 syllabus, and I sit in the front row. Haven't been called on for 6 weeks. And I also noticed that people in the front row are very rarely called on. Professors would use them as part of hypos, e.g. student's name, but would rarely call on them.