I'd go for the CL Brakes (used to be called Carbone Lorraine) RC6 over the RC5+ seems dust is not an issue. Both will cope well on track and you will not get fade from the pads. The RC5+ has a friction level of 0.42 which is a bit lower than the RC6 (0.5) but instead gives off barely any dust. The RC6 is about £15 more expensive for getting fronts and rears though.
If brake pad and disc wear are important there is also the RC6 Endurance compound which has virtually the same friction level (0.46) as the RC6 but will last longer as it was designed to not require changing during 6-24hr endurance racing. These are a nearly £50 more expensive for the front and rear set but they will last longer..
RC5+
http://www.kamracing.co.uk/index.ph...e-pads-renault-clio-1-8-16v-2-0-williams.html
RC6 / RC6 Endurance
http://www.cl-brakes.co.uk/index.php/renault-clio-1-8-16v-2-0-williams-rc6-brake-pads.html
We can get RC8's also if you want the ultimate friction level (0.62), but I believe these will only come into their own with sticky trackday tyres or slicks. If you're running these either of these let me know and I'll get these up on the site.
The below graph shows the friction levels for the CL brakes. The new RC5+ is not on the graph but is slightly higher than the old RC5 for the friction co-efficient
The Mintex M1144's are not as track orientated as the CL Brakes and you may experience some fade with longer track sessions due to temperature build up. They have a friction level of 0.45
the M1155's are more track orientated than these and have the temperature band a bit higher
with the M1177's it will take longer to get up to temperature (not an issue with the CL Brakes). Not got a graph for these unfortunately. the friction level is around 0.61 and dropping off after 500 degrees C down to 0.55 at 700 degrees C
We can get the Mintex pads also but havent got them all on the site since going live with the new site..
Pagid blues in my opinion are well over priced for what you get. they work from cold up to about 550 degrees Celcius and are pretty similar to the Mintex m1155. They have a friction level of 0.4 from cold and go up to 0.46 at 550deg C where it then drops off
The DS3000s have a friction level of 0.62 so within their temperature band they are comparable with the RC8. The RC8 has a larger temperature band and so works from cold (unlike the DS3000's) to well above the temperature range of the DS3000's
PF97's have a friction co-efficient of about 0.4 if I remember correctly (just below the RC5+). I've not tried them myself but have heard that they don't give good pedal feel.