Origin for me, plus i have my gas with them too so get pretty good discounts. Origin have been great for us, great customer service too. (Previously i was with Telstra, Origin has bee a dream compared to them)

Do you mean internet speed? There will be a maximum speed your house can get no matter which provider you are with. We are with Exetel nbn. Once connected they do a test and tell you your max speed and offer to downgrade your service if you can't get the speed you are paying for.

I think you may have to do a little research here. Try a comparison site like Finder

We have used TPG for nearly three years. Theyve never failed us. Our internet is fast and reliable. On my mobile phone I use our home wife (tpg) instead of my Telstra because TPG is way better. Its just reliable when telstra ain't.

I like Aussie Broadband.