1. The bi-party system splits the nation into two irreconcilable camps. In the words of Prof. Smith, the two party system presumes a bisection of human nature which is not true. It is based on the principle that people have only two opinions. But modern society has various conflicting interests. All these interests do not get adequate representation under this system.
The multiple party system is superior to the bi-party one in as much as it can give representation to all shades of public opinion. The Parliament becomes a true mirror of public mind. Voters can have many choices.
2. Under bi-party system the majority party in the legislature might have been elected with minority of votes an;' thus the minority may rule in the name of majority but under multiple party system, the government would normally represent majority of voters.
3. The bi-party system, according to Ramsay Muir, undermines the prestige of the legislature and results in Cabinet dictatorship. Under multiple party system, however, such a phenomenon is not possible where legislature by grouping and regrouping can oust a cabinet at once out of office.
4. The bi-party system leads to despotism of the majority which rides rough-shod over the wishes of the minorities. This is not possible under the multiple party system where the coaltion government is terribly afraid of the legislature. In conclusion, it must be said that multi-party is more democratic and wide spread in the world than bi-party system.