I do not think the British style westminster system is the best or effective at all. And the situation where the party with less popular votes gets into power is more difficult to swallow.
And India strangely adopted this system from the British.If the British which is a evolved democracy is having problems with that .Imagine this system here In India which is more vaster and very diverse culturally.
And with a large population beign confined to backward social traditions, There has been emergence of smaller political parties seeking to get as many seats they can get,even one in many cases based on religion,caste, and other identity and popularity politics.Even hardman tactics.
I know this is the British Politics thread. But since we are discussing the Electoral systems i thought i should get this out .
I have to say for a big and diverse country like India the U.s system would be way more ideal.
For Britain i think Proportional representation could work well too.