I run a separate house and start setup, with two start-type batteries. This way, I can swap them over every 12 months. That being said, you are better off with a deep cycle if you have a lot of house load( fridge/s, lights, live bait tanks, multiple displays). Particularly if you camp overnight. Mine will be replaced with a deep cycle when the time comes. Best thing you can do for battery management is to get a VSR controlling your House battery charge. Very simple, it just isolates the Start battery from your House load. You need to have all your House load wired from the House battery, and only have your engine-associated power fed from the Start battery. This way, when the Start battery drops below 12.4V (will vary slightly), the VSR opens and isolates the House from the Start. This way, you can run all your House load and not worry about having a flat Start battery. When the engine starts, and battery voltage rises immediately with the alternator charging, the VSR closes and  the House will charge also There should be a switch in parallel with the VSR, so you can overide the VSR if you want to use Both to Start. 

You can wire this up with 3 separate battery switches and a VSR, or adapt the old 1/2/Both Cole Hersee types, or buy a dedicated all-in -one unit. The one below is one which I made for my new boat. Switch on the left is Start, middle switch is Both, and one on the left is House. The VSR and CB for the House supply to the dash further left. Normal operation is Start and House on, Both off,  leave it like that. 

If you buty the all-in-one type, you just need to connect your leads to the appropriate terminals. To adapt the 3-way type with the addition of a VSR, I'm sure someone on here has a drawing saved on how to do, and will chime in soon.