Need Opinions!

[indysteel]

That's quite a list, and to be honest, they're a bit all over the place. Some are entry level road bikes with lower end componets, some are high end road bikes, at least one is a tri bike and another a time trial. I assume there's a big price difference between the cheapest on your list and the most expensive.

So, let's work backwards a bit. What kind of bike are you looking for and how do you intend to use it? Are you a new or experienced rider? What's your budget? What frame material do you prefer?

All of them are fine frames, but how you're going to be using the bike and how much you can spend may eliminate a few of them right off the bat. From there, it really comes to fit and ride quality. I, personally, don't have personal experience with any of them, so perhaps someone else on the forum might. Even with that, it would be to your benefit to find a shop and test ride as many as you can or, in the very least, get a sense of what kind of geometry you need so that you might be able to further narrow it down.

[Kiwi Stoker]

As mentioned above these bikes are at all levels.

Avanti Sprint- this is Avanti's base level road bike

SUB series- Designed in conjunction with Sarah Ulmer and built by Avanti. They are female specific. The SUB Rosa Pro is the top level bike and is full carbon. As its designed as a full on race bike it doesn't have compact cranks which as a beginner you may want to try. The Zero is an Aluminum bike, same geometry as the Rosa series.

Specialized- The Dolce is an aluminum bike and the Ruby a carbon. BTW I assume you are either in Australia or NZ from some of the brands you mention. The Ruby SRAM is not available in Oz or NZ- the distributer doesn't bring in all the variations available in America, so only the Shimano version will be there. So if you have found one it will either be someone has brought it into the country personally, or has altered the groupset on the bike themselves, so may not have the full support of a bike shop.

[celerystalksme]

are you looking to buy one of these bikes?