The only reason to buy WC is to get a better cooling, while those 2 is really performing as a half priced air coolers then imo there is simply no point of buying it.
We are not talking about H55/60 vs high end air coolers.. with are talking about average ones which in fact are cheaper:
http://www.hardocp.com/article/2012/12/03/new_corsair_h60_h55_cpu_liquid_coolers_review#.VVSiipOjbSI
Btw not sure how "cleanness about the air, the eficiency and the price" is favoring that Corsairs... its exactly the opposite.
- You can get cheaper air coolers
- You can get more efficient air coolers
- maintenance is either the same or easier (both have radiators which will get dust eventually)