[QUOTE=SpedFast;22707329 I'm looking for the holy grail of bikes. y[/QUOTE]
The only way for you to find the "holy grail of bikes" is to go test ride a bunch of bikes with different frame types. Keep in mind when doing this that some bikes may have wider tires thus using lower psi which will make it appear as if it's smoother riding than another.
All I can tell you is my experience, yours could be different. I use to live in California, the roads there aren't near as bad as they are in NE Indiana where I live now, the freeze and thaw cycle just plays havoc on roads here making them a lot worse than California. I have several steel bikes, and they do ride good, but when got my Lynskey Peloton which I never test rode, but I did test ride several time another TI bike, the difference was not subtle, over harsh broken and pot hole roads the bike was smoother, obviously not like a suspension bike, but smoother than any other road frame material I have ever been on. Even on chip and seal roads, my steel bikes would leave my feet and legs buzzing for awhile, I don't get that at all with the TI bike, and the tire size are the same, and the geometry is close to the same. If you can afford a TI bike, ride one or two, then decide. TI, if made right, will last a lifetime and then some, they will even survive crashes better than a steel bike will, but a steel bike will survive crashes better than AL or CF frame will.
The TI bike I got to test ride was a friend's of mine, it was the least expensive TI bike on the market at the time, a Motobecane bought from Bikes Direct, and that cheapest TI bike had that same subtle smoothness about it that my Lynskey has. I almost bought the Motobecane from Bikes Direct, but when I went to order it, it was out of stock, and stayed out of stock for over a year and a half, in the meantime the Lynskey Peloton came up on a closeout sale so I got it instead.
Here is an example of what kind of force a TI tube can take vs other tube materials:
Here's an interesting test done, but TI is not included, but does reveal what the other materials abuse can take: