I'm trying to make a decision between the two and I wonder if it simply depends on which rep employee you are assigned to in each business, and their experience. 

This may depend on your market, of course, but in general, if all of the nearby MTRs have it, you are going to want it for your units, as well.

When I looked at prices recently they look like they've gone up quite a bit but I know they vary a lot depending on the neighborhood. 

It  really depends what you value.

It depends on a lot of factors; primarily the local jurisdiction rules that may limit lease changes (in Portland/Oregon rent, security deposit, screening fees, an no-cause evictions are heavily regulated).

@Cory Prior I would say it depends on what you want to learn.

@Kyle Carter  We love renting to Section 8, however depending on the size of the property you may not be able to realistically rent to 100% section 8.

My COC return will vary depending on my out of pocket cash.

There's many other options in real estate such as syndication and note investing depending on your level of involvement. 

Some investors are better at doing their research, financials, and taxes than others - it depends on the investor....