Rental Properties

I've been colaborating the Pro's and Con's of different types of rental properties. And I still haven't been able to make a considered decision.
Pro Con
Here's what I have so far:

Small House:
yard work may not neccisarily be covered in rental payments
small rental houses are generally quite old
newer rental houses are too expensive
they are small
they generally only have on-street parking
they have laundries!
they have seperate rooms for dining and living
more private than an apartment because there is more space between ur property and ur neighbours
have a yard and clothesline

That's all I've coined up for small houses so far

Apartments and Units:
they are generally more affordable
usually provide tenent parking
can be extremely new
no yard work
they are small
they usually don't have laundries
usually have living and dining areas in one
are very close to neighbours
no clothesline or yard

That's all I have so far. Comments appreciated!