Hi,
Pa2006.
I presume that you are not including your PhD days in years of experience.
6 years is good enough. I think you should go for the EB1-EA or EB1-OSR. Based on what you said about your pubs and potential of the research and Govt interest.It may cost, you money but I would prefer to go to a lawyer. Specially one who can understand EB1-EA cat. Most of them do the filing and stuff like that, but only few are good to see the application in detail.
I will pen down my understanding of these two cat.
EB1-EA: This requires extensive paper work, this is supposed to be the best of the best cat and of high prefrence, so you need to provide most if not all of the criteria of selection. But again it is the game of packaging, how you spin the info to your advantage. If you are doing the paper work, as most of them do, lawyers only look through the letters and suggest some imp, phrases to be added or deleted, I would suggest take time, carefully device the plan, and then execute. It is better to be late with a proper application than with an application which is prepared quick and improper. If you have friends who have filed one before, go through the application from word to word, at the end you should be able to find the points that the immigration guys missed.
EB1-OSR: This is next in line, but good enough for GC, any ways GC is GC.
It says that you should be in a permanent postion to get this, again saying permanent is at debate, but most of the research guys qualifies for this, Your University does the I140 for you and you have to the rest of the process, most of the universities have this policy, it might be diff in your univ check this out. Even this requires good enough paper work, but is more strigh forward. This is also relatively easy to get.
So probably it is the same point again, EA or OSR, I prefer go for the OSR.
good luck
Rama