Welcome to the community, @Brian Eilering! From my limited experience, single family homes are easier to enter, manage, and sell in the event you need to get out of the property (function of more buyers.) Many investors view them as a safer niche to master.
I have never personally invested in mobile homes, but have spoken at length to a friend that did: it's a different beast all together. The biggest differentiating factor between mobile homes and SFHs is the challenge of collecting rent from so many units on a monthly basis. This is compounded by the quality of renter that utilizes a mobile home as compared to that of a single family home. That said, they can be cash flow monsters if managed properly. My friend's parting words were that he had to, "get creative with enforcing rent collection."
Whichever road you pursue, you have a wealth of information here on the forums. Speak with an investor-friendly realtor (many of them around BP) and get your financing in-line before you get too far in. When a deal comes your way, you're going to have to move quickly on it.