I am just one person, with just one phone. I know that doesn't apply to the OP's situation, but others are reading, so for their benefit, here is what I have. I am very happy with my phone and phone plan (and thanks to REWahoo for suggesting it to me several years ago).
Cricket, $30/month, unlimited talk and text, 2 GB high speed data
I never use much data so this is way more than enough for me. But if a customer with this plan goes over 2GB, they won't cut you off; they just lower the speed.
What I like about this plan is that every month I get billed for EXACTLY $30.00, no more, no less. Not a penny extra for taxes or fees. For some reason, this makes me very happy. I was also happy to get a free LG phone from Cricket in exchange for porting my phone number over to them, from Verizon.
Another benefit for me is that there is a Cricket store about a mile down the road, if I need any help. So far I have not, but it's a nice security blanket to know that they are there.
Cricket uses the AT&T network, so I get good, solid connectivity.