Whichever company is providing you the better 401(k) match should be the one that gets it all.

If you have more than $5000 in your 401(k) then if you ever leave your job, you will not have to roll it over or take a total distribution.

I'm assuming it's a 401(k).. if not.. put your money in the ONE account that is better for you overall.

What you do depends on what each plan offers. If both plans offer a match, you should contribute at least enough to each plan to capture the maximum match. That is a guaranteed increase in your investment right there. After that, you should consider the expenses of each account. An account with higher expenses puts you in the hole from the beginning. Go with the low expense alternative. Next consider the investment choices in each account. Which one matches your investment style? If you want to use index funds and an account only offers managed funds, it isn't for you.

One other thing to look for, assuming you are in the USA, if you have 2 jobs, they are both taking Social Security out of your paycheck. That means that at the end of the year, if you have exceeded the SS maximum income, around $97K I think, you have overpaid SS. You can use that as an payment on your income taxes.