I did find this: https://www.over-yonder.net/~fullermd/rants/bsd4linux/01. It doesn't have a date, but he mentions using GCC 3.2.2, which came out in 2003, so I'd say the info is pretty out of date.
Can we share some links and knowledge?
PS: I'm sure I speak for everyone when I say I'm not remotely interested in arguing over which system is "better" - I just want to know about differences in design and unbiased identification of strengths and weaknesses.