while some say US is the best others vouch for UK and Canada ...
Can you advise me as to which one is the best ?
Generally, the answer is to do your training where you intend to fly.
Also can u advise me on as to whats the difference between schools that offer courses for 8mths or so and the ones that offers courses that last for around a year of two ??? Does it mean the difference in the duration reflects on the quality of training provided ???
8 Month course .... I guess that would be an integrated school like
OAT,
FTE,
Cabair or
CTC.
It's not the cheapest at around £70k / £80k. If you already have a PPL and the 150hrs for your CPL then you're better off going modular. If on the other hand you don't have any hours at all or a PPL then this might be the route for you. Before you ask which is best look here at
The never-ending 'Modular vs. Integrated' debate.
Good luck!