I swapped from my 350z to my current 197...
Powerwise, its way down, mine was a '53, rev-up remap, exhaust, pop charger, 25/20mm spacers, eibach springs... made 294bhp...
IMO if you can get a low milage DE, thats the one to go for due to the lower tax. Due to the weight, there is very little real world difference between the 3. The HR does have duel intakes, and a different bonnet bulge though.
Engines and box will run forever, 1 to 2nd is always notchy, but these gearboxes can see 600bhp and still be happy!
If your going FI route, the bottom ends hate torque, so the engines likely to be taken apart from anything over 400bhp.
IMO the clio is a much more fun car, but that doesnt mean the zed isnt. It will pull past 150mph, they sound gorgeous, and turn heads everywhere you go!
As above, anyone that thinks a clio will keep up with one in a straight line is on crack. Throw in some corners and its a different beast
VERY impracticle cars though, main reason for mine going!
edit:
i used to get 22mpg on a steady drive in the zed, where im nearer 26mpg with the same driving style in the clio..... motorway driving tho the zed will piss over the clio with the stupidly geared ratios