Uno turbo everytime,and I`ve had nearly all those cars or been in them/raced them back in the day.
Bleed valve,1 bar boost and it was proper hunting territory,wasted several big boys over the years in mine,including some serious embarrassment to a 16valve golf gti,it was awesome fun.
Downsides?unreliable,shite handling and terrible build,but seeing all those led`s light up on the dash and watching that boost gauge peak just off the end was awesome,loss of traction in near enough all gears in the wet was great too. I remember one night down the Kingsway in Swansea there were about 6 of us with them,in various colours,one even had a DIGIDASH!!!
Out of the others listed it would be the 16v gte for me,R5 was just the most unreliable car ever,pug too slow,golf mk1 cool,mk2 needed a decent engine,civics were ok but pretty rare back in the day and all that other jap shite was just that,shite.
Mk1 astra gte also a cracking shout.