The irony is that for a lot of Indians/Chinese here, they could either wait 6-8 years, or they could leave the country for a year then transfer back in and have a GC in a year or less. It's particularly unpleasant for H1-Bs who start the PREM process as such. So much easier for internal transfers, especially EB1, O, an L1/L2... and easier still if you're not from a slow lane country (currently China & India, but Brazil was in this boat for a number of years, too).
A lot of companies (Microsoft is one example that I know of) are sidestepping H1-B entirely for college hires (and perhaps other channels of hiring?) for L1. Hire in Canada or the UK; apply for L1; transfer to the US in a year or two.
Apparently it's much more straightforward (and less prone to chance) as compared to H1B.
Its actually pretty cool to see Microsoft 'hacking' the visa system. They opened a center in Vancouver and put all their international hires there for 1 year, then brought them into the US on an L1 which allows them to get a greencard in 1 year- which prevents them from being in the 10 year to be free queue.
There is 0 difference in the speed of GC process. It does not matter if you are on H, L, O or don't have any status at all and applying from abroad. People are spreading this myth because L1-A and O-1 requirements are pretty close to EB1 so if you can get such a category of visa then you have a good chance to apply to EB1. But, again, if you fit these requirements already you can just apply to EB1 from any status (or lack of thereof).
Actually at least one cateogory, EB1-C, specifically applies to managers relocated from an overseas branch of the same company. An equivalently qualified manager on H1-B in the US is ineligible for that category.
Equivalently qualified manager on H-1B would have spent a year out of last 3 serving in such a position overseas so he would also be eligible. Alternatively, a L-1A manager who already spent more than 2 years in the US would be ineligible.
Didn't know that, thanks for the information. I was rejected in the H1B random lottery step (sigh) after getting an offer from a grown startup in SF, and did not investigate the green card process deep enough.