1. Competitors for Bitcoin as a internet money : paypal kind of processors
2. Competitors for bitcoin as money transfer : western union
3. Competitors for bitcoin as investment : gold, shares
4. Competitors for Bitcoin as a payment processor : Visa, master card, Amex etc
paypal and others are just payment processors, so the main competition comes from fiat. and honestly I don't see bitcoin anywhere near fiat despite all of its good benefits.
also as an investment, while bitcoin has the possibility to give a good profit, at the same time the risk of losing a lot of money is also huge so I would consider other ways of investment instead of bitcoin.
The part in bold is correct according to me. I haven't heard in three years of my life with bitcoin any site which had offer profits consistently and regularly in bitcoin for a long time. Or that is live actually. Mostly of this kind of similar sites were scam which had scammed hundred and thousands of people. I think that the best way to have profits from bitcoin is to leave it in the wallet and to wait the increase of its price in the future.