If it matters here's my philosophy:
Invest enough to get 100% of the match in your employer's plan.
Make sure you have 3 months (or 6) of emergency savings in a low yield savings account.
Then max out your Roth IRA (assuming you make under the thresholds of single or married, in the US)
If you get the match, and are maxing out your Roth, and have more to invest, put more in your 401k. If your company has a Roth option, the company match is mandated to be pre-tax, so try to make it a Roth option or split Roth/Traditional.
Once that's maxed out, and if you still have funds available, invest in an after tax account in tax efficient funds or stocks. Alternatively, if you have an HSA, max it out each year before investing after tax, and after a set amount of dollars you can invest those too, and those are triple tax protected. Save receipts!
Pay down your mortgage. Save as much as you can, but don't make it such a priority that you lose short term perspectives of fun/vacation/enjoyment.
Also, my investments in our Roth and Traditional IRAs:
WMT BDX O T V GIS VZ APD MA CAH DIS
JNJ MMM PG HON KO LOW KMB MKC HRL WSM HD ITW
TGT MO MSFT CLX AAPL ADP
PEP LMT
Average yield: 2.63%. Dividend growth rate: 9.74% (means my divs grow by nearly 10% per year). Beta: 0.87. I practice dividend growth investing, not necessarily total return investing, but I tend to beat the market.
And my 401k is in low cost Vanguard/T. Rowe Price MFs. I usually put those in small/mid cap indexes because my other accounts are mostly large, blue chip companies.