The only clipless pedals I've ever used is LOOK (the carbon body pedals that came out back in 1996) , and Time Pro Equipes( Criteriums , and Mag).
I like the Time Pro Equip. Mags.(400 grams) alot.... but wanted to try a new pedal.
I ended up getting the Time Impact Mag. >>> got a good price on them , and at 290 or 300 grams/pair ......, thats excellent , and they still retain the same larger platform of the Equipe Pro's(same surface area) , and they are essentialy the SAME design as the new RXE/ RXS pedal (minus the carbon... 1 ounce difference) , but I'd rather romp on Magnisium... then Carbon( it has the potential to SNAP ! Plus, I like to let others , Pro's , etc. use the pedals for 1-2 years......... so that a fair assesment comes back on the pedals.. before I buy them.
I have always used Sidi Genius 3/ and Techno shoes(NON Carbon sole) ..... and they work great for me(I have a narrow foot).
Sidi/Carnac/DMT/Shimano .......... they all make a great shoe( newer versions... or even mid-late 90's shoes) ........... so really, as long as you find a SHOE that FITS........ thats what matters( just like if you Ski.... having a properly fit SKI BOOT.. is what matters).
Thus, the "problem" of the so called "hot spots" on peoples feet... is inharently a PEDAL problem , not shoe. The LOOK design pedal is a solid design that sets the industry standard... without a doubt(overall performance/ large platform/ easy enough entry-exit/ durability/ weight is decent- cannot always be a weight junkie(ie. being a 200 lbs. rider.. and using Ti. spindles is a NO NO !).... pedal weight is important(centra-fugal force... I do believe)... wheel weight is even more important.
>>>>> take LOOKs design a STEP further....... and BAM, you have Time's design, Equipe Pro .... Impact.... RXS . Here, you get great platform size, low weight(not TOO low) , great design- float is 13 or 17 degrees , plus you get Lateral float( the closest pedal to spindal platform of any pedal) , easy to clip in/out of / super durablity(great sealed bearing design.... rainy riders??) . To me, as long as the pedal/shoe combo gives me proper Energy transmission to the cranks/driveline, then thats what matters most(excluding weight - everyone has to push/pull something , whether its 100 grams, 200 grams, etc.) . A well designed, durable pedal is also very nice to use as well. I have to give it to the Frenchmen on this one...... , since I am biasedly Italian driven/ridden rider
The Campy ProFits look good.... but look to have an even Smaller platform then LOOK/ Time.
.... I am Time's PR person , give it up