Started out with AO with Demo disc 1 on the psx. I did however not finish it first (without using the level select cheat). First one that I finished was AE. I then went back to AO directly after.
Guess at the time AO was just a bit to difficult for 8 year old me at the time.
When they originally announced Munch I got super excited and it was the game I was looking forward to and the reason why I got a PS2 originally. Sadly it moved to xbox and my parents had a 1 console only policy.
I remember my naive young self hating Bill Gates back in the day as I thought that he was the man responsible for "Stealing" Oddworld away from the Playstation

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I often though about secretly buying a second hand Xbox just so I could play MO and SW.