Changed to Virginmedia about 3-4 years ago: dire warnings from BT re re-connection charges if we changed our minds. We are now supposedly on superfast (100mB) broadband, but when I test it on Thinkbroadband, it doesn't quite reach those dizzy heights: however, far superior to what we had before (AOL on a BT line.)
We have landline (anytime calls), broadband and basic TV package from them, and they've just announced a further price rise for November, taking us to nearly £70 per month: think it's time to do a bit of price negotiation? Don't want to leave, as it has been reliable, and on the 2 occasions we needed help, an engineer was there same or next day. "You get what you pay for" even if it's not cheap!
I don't use their mobile phone service: like Jon, I use PAYG on ASDA mobile tariff: £10 lasts me about 2-3 months, as I mainly only use the phone for calls and texts. One irritation is that they "don't support" 5- figure text numbers, but I can live with that.
And I have a 3 simcard in my iPad which costs £10 for 1GB which lasts up to a month, for when there's no Wifi to use (I avoid any unsecured free Wifi!)