worlds best ASW helicopter?

can anyone provide a list of the worlds top10 ASW helicopters
taking into account new models which are entering service in
next 5 years also. A per unit cost estimate would be nice.

RFP is 40 new midsized helos for a large navy to be embarked on
5000t+ DDG / amphibs / carriers.

* must carry 2 torps / 2 Exocets minimum
* 4 – 5 hr endurance
* great engine with high agility, one engine failed musnt kill it.
* advanced ASW gear – mad, sonobuoys,…
* capable of midcourse guidance to ASMs as a bonus
* onboard processing of contacts.
* great sea surveillance radar
* high service ceiling
* data links to shore, network of ships / helis / LRMP.