Class 1:
MM, PM, SM, DPM in that order.
though you might argue they're advisers, SM is still very
influential. can be seen from what he said about CPF, and his
importance in bridging the middle east.
Class 2:
Education, Finance, Defence, Home Affairs, Foreign Affairs.
in no particuar order. this is from the PM himself, saying these
are the 5 key areas when he challenged the WP team A from aljunied
last year.
Class 3:
TradeInd, Health, NatDev, Manpower, Transport.
Class 4:
Law, PMO, MEWR, MCYS, MICA.
the longer the name, the lesser the importance. law is the
exception, it's held by jaya now cos nobody else in the cabinet
qualifies. except LKY.