Most malaysian chinese speak mandarin, english, malay and
chinese dialects!!
Most singaporean cannot speak a complete sentence in english
without adding a few chinese or malay words, or a complete sentence
in chinese without a few english words. We call it Singlish so its
ok. (who needs to know perfect english? not all can be
lawyer!)
If language is just a mean of communication, malaysian surely can
communicate with more people, especially when they are outside of
malaysia.
generally speaking, if one can understand more languages, one can
have a much broader perspective of the world around us.
some chinese singaporeans are migrating because can't cope with
chinese language, their mother tongue. 
