Bluechip vs SP500 which wins

Hi guys, so i had a chat with a friend of mine about stocks etc who is an ex banker. I explained i wanted go put a large sum and now continue to invest in to the SP500. He agreed that its a good idea and should invest in to it heavily as well as Nasdaq, he said split the two 50-50. He also said that i should put a portion of investments in to bluechip companies such as Amazon, Microsoft, Tesla, spaceX (as believes the future is now space exploration) just to name a few as the returns on them can be significantly higher. Now given he’s a retired banker he obviously knows what he’s talking about, but before i invest i just wanted to get everyone else’s opinion on what they think? Im looking to hold for 20-30 years but equally, given I’m 35 if i could make some good profits in 10 years on part of the investments Id obviously be really happy. Or should i just invest solely in the sp500 like originally planned? Thanks