Sorry I haven't been very active in this thread...
Anywho, I just can't see myself with an S2 and my wife already has an S4... Techy thin ya know.
I have kind of narrowed it down to the S5 because of their durability ratings. BTW the IP rating for the S5 and the S5 active are the same, if anyone is interested I will send a link here in a bit that explains that rating.
Thank you for all your input, it is good to hear that the battery could last for 10 days on the S5.