Canadian LP pressing, how good?


Specifically interested in old Columbia 2 eye 360 sound pressing. Do they sound worse than 2 eye American? Anyone compared? One of the reasons I am asking is that in the past I always had good ebay transactions with Canadians, buying mostly European records. Master tapes of the recordings I am interested in were in the US. Canadian pressing of 'Bitches Brew' vs American, as an example. I got couple of American but none is exactly mint.
inna
I have all the Dead Can Dance albums. The Aion is a white label  promo and the rest are regular original UK issues. Though hard to compare different albums, this promo sounds really good.
I also have a few Japanese original promos in addition to regular original Japanese from seventies. The promos are significantly better, especially in terms of dynamics and resolution. Hard to find and expensive but worth it.
Are you saying that you prefer the sound of the Japanese pressings of Dead Can Dance to the original UK issues, leaving aside promotional copies for the moment? 
I only compared Spleen and Ideal. Yes, I preferred the Japanese to the UK but the difference was not big as I remember, I sold the UK record years ago.