I have a current thread about this subject here:
It is really a personal choice these days. The evidence of the ingredients should be researched by people, and on that thread, are the names of each brand available today.
There can be many reactions to these shots, which are really pushed on people now by advertising everywhere. That is alot of injecting of foreign substances into people who may be reactive to them. Notice H1N1 is included in them along with 2 other strains. Why do we need yearly H1N1?
The virus in them is moot, as it is dead. It is the adjuvants and potential contaminants which come along for the ride, plus the egg proteins (allergenic) and antibiotics and other substances, to consider. It is also difficult to even get a list of the ingredients. Some years I have been unable to even find them!
So in the end, each person is going to have to decide for themselves. It is not enough to go with the flow, or do what others recommend IMO.