The days when aggressive closing techniques and hard sell prevailed, are pretty much over. Nobody likes to be put under sales pressure - it makes people want to run away, and it boosts their skepticism. The best way to close the sale is to provide neutral, objective information and let the customer decide for themselves.
The old school method is to say 'we are the best'. The new school is to ask 'what are your needs?', to listen, then point out your strenghts and mention all the other suppliers out there along with their advantages. This is the way to win customers' trust.
People want somebody they can trust, not somebody who says 'trust me'.
While your competitors claim they're the best, the fastest, the cheapest, you can stand out by helping customers make the best choice for them (even if it's using somebody else's products).
Never claim that your solution is the ideal fit for everyone. It's not and you know it. Instead, listen to them and suggest a solution that is best for their situation.