When looking at batteries I think you should start with your requirements and work from there.
I have posted a few questions you need to ask your self before making the choice.
What you want to run and for how long?
How and how often will you recharge?
The size of the battery bank; Amp hour / turns into recharge rate?
How many cycles do you plan to get / % of a normal cycle / % of a your max cycle?
Auto starting genset with large charger to limit the % of discharge?
Temperature of where the batteries will be kept / ventilation / how much added heat from charging?
Glass mat batteries can have issues of shortened life if they are discharged past 25% often.
If you plan on glass mat then you will want an auto start genset wired into charger. A good inverter / charger system can handle this, but you have to look at your genset size depending on the brand.
Wet cell batteries are a PITA to fill, but they have filling systems for the better brands that make it simple and takes away a lot of the danger. Better to use RODI water or distilled water. Not as picky to large / deep discharges. Will need to be equalized a few times a year.
