I have ridden a few Ti road bikes. They have all ridden differently.
The Sabbath I rode was a Mondays child and it was really tidy. The welds were really neat on it. It looked pretty much as nice as the fancier ti bikes I have seen. I loved the ride on it. It is a stiff bike but I did not find it in the least bit harsh. Greg was really good to deal with and I was going to buy one but in the end the timing was just a bit wrong.
My bike is a Planet X ti pro road. It has a short head tube which is perfect for me but not everyone. Its very like the Sabbath to ride most of the time but a little less stiff when you go for it. Its my favourite bike maybe just because its the one I have spent the most time on.
I have ridden a Lynskey Helix. This is a totally different bike to the others. Its fast and sharp feeling and it goes round corners somehow better than other bikes I have tried a bit like its on rails. When pootling along it is ok, maybe a bit harsher than the others. When you ride hard it is stiff feeling and rather fun! I dont reckon its finished any better than the sabbath, maybe a little better than the planet x. The welds look the same on all three. All of which looked better than a VN I saw- I have a helix frame waiting to be built up.