Admiral, adidas and nike.
The kit in my avatar was my favourite, as far as I am aware there were only the player ones made. Goram also wore an orange and grey version of that top - no other club or country had that colour combination on that design.
He didn't wear the sunset one or the purple adidas with the black stripes released second adidas season I think, but randomly wore a black with black stripes version of the purple one during the 9-in-a-row season.
Wore an adidas one with no RFC but had McEwans Lager away to Hibs and at home to Aberdeen (3-1 game where Aitken had them 1-0 up at half-time and we were immense second half).
From my memory he wore:
3 x Admiral one with black shoulder pads in grey, red and yellow.
2 x Adidas 92 with the shoulder stripes in red/silver stripes and yellow/red stripes. (Edit - there was also a silver and black version of this so 3 colour schemes of this style).
3 x Adidas 94 Predator kit (my avator) in yellow/red, purple/grey and orange/grey.
2 x Adidas 95 tiger style (3 stripes across the body) in orange/yellow and light blue/grey.
1 x Adidas 96 plain white with the red and blue shoulder stripes.
2 x Nike first season in plain grey and plain yellow.
Plus the two random ones I said earlier and an even more random umbro (Ajax style) yellow kit v Auxerre in Champions League.
That is just my memory but don't think I have missed any. Think that is 17 different tops worn in competitive matches.