Far better is probably a bit of a stretch, the most important part (ie. the engine) is the same in both cars. One is an AWD cruising oriented hatch, the other is a FWD driver's car (lsd, stiffer suspension) with several bespoke elements (bodykit, bucket seats). One justifies its price by numbers (4 driven wheels, 300bhp, 0-60 sub 5") the other one by qualitative factors (involvement, feed-back, tossability), coupled with the fact the R is greatly understated looks-wise it will appeal to a much bigger everyday audience. The Clubsport being a special, focused variant will appeal to people who know why they would be after such a car in the first place. Yes technically/financially it probably won't make sense but that won't matter to them.
In any case 43k eur is a whole lot of money for either of them, I see 37-38K eur as the max justifiable catalog price for any fully loaded Golf, 2, 4 or 6WD regardless.