I think someone up the thread made the interesting point - even with a mortgage a house isn't technically yours. Technically, it's the bank's if you have a mortgage. So I think that makes the idea that renting is inferior to home owning a bit silly.
Also, a few people have said they find the question offensive, I don't agree - maybe it's deliberately provocative, but isn't that the point? To get people talking? So often I hear people say things like 'Do you own your place or are you just renting?' or people who say that renting is like 'throwing money down the toilet'.
I think it's not a straightforward answer - I've rented for over 8 years and have live in a number of places, some felt like home, some didn't.
The place I most felt at 'home' was actually in a house share with 3 other girls I worked with - the flat was huge and in a nice area and was decorated the way we would have wanted to decorate it. The landlord was really friendly and quick to fix anything that went wrong. We had a lot of space to invite people round for dinner and often had dinner parties, film nights, or drink parties. I loved it. It was sad when we went our separate ways - a couple bought a place, and myself and one of the other girls rented separate places.
I moved in with my DP into a rented house that ended up being a complete nightmare! We had to live for a long time with no shower, and when things went wrong the landlord just wouldn't answer his phone and would eventually get back to us to to say how busy he was, and that he'd rather we left him alone! We were allowed to decorate some rooms, but honestly it was like polishing a turd! So much work was needed on the house.
Eventually we got burgled and the landlord tried to make us pay for the repairs to the house, so we moved. We're now in a really nice flat that is decorated exactly as we'd like it, so it feels more homely. Especially at Christmas with our own decorations up.
One of my old housemates who bought a flat has a flat that is the exact same size as the flat I now live in, but she's paying about half the amount I do in rent each month on her mortgage. BUT she also has to pay when the boiler breaks, etc.
I can't wait to have a home that I own so I know where I'll be for the next few years, and I won't have the insecurity of not knowing if I can stay in my house for another year when the contract comes up for renewal. I want to settle down in a house that I'll own for absolutely years, but I don't look forward to having to pay out when something goes wrong!