Mobile Carriers signal in Hills District

[shail]

My optus contract is coming to end and am thinking about buying an galaxy s2 on vodafone plan. was wondering if vodafone(vodafail as some called it) has good signal strength in hills area. I am also planning to move to castle hills in next 6 months.
What is the best carrier you find so far in the area?

 

[pennyk]

I've been with Optus for years, and coverage is fine. Hubby has problems with vodafone. I havent tried telstra, except for a while a few years ago for work.