ICO token/coin proportions

[thenoisywatcher]

What's the ideal token distribution for an ICO in terms of dividing it over Marketing, Developers, Bounty, investors?
I found this one:
- 50% token sale
- 29% for marketing, further dev, customer acquisition and pr
- 20% team and early contributors (10% liquid for early contributors, 10% invested for 1 year with 6 months cliff for the core team).
- 1% bounty

For me (I think) is 20% for team and early contributors sufficient and 50%+ for token sale okay. It is important for investors to own more than 50% of the token sale.

Any thoughts about this?