The inevitable Apple versus Samsung smartphone grudge match has become a yearly event in most technology fans' calendars.
Previously the fight has been fairly close, as both firms have released at best moderate updates to their smartphone portfolios. However, Apple was the undisputed winner in 2014 with what in many people's minds is its finest smartphone to date, the iPhone 6.
Featuring a completely reworked design and wealth of new features, the iPhone 6 remains one of the best smartphones available.
By comparison the Galaxy S5 was regarded by many buyers as a rather mediocre upgrade and it failed to deliver on sales projections from analysts or Samsung itself.
Not willing to let history repeat itself, Samsung took drastic steps to rework its handset and developed what it describes as its "most advanced handset to date", the Galaxy S6.
To see how the Galaxy S6 and iPhone 6 compare to the HTC One M9 you can also check out our triple head to head review.
Design and build
The iPhone 6 was critically praised for its design, which is markedly different from earlier Apple smartphones.
The iPhone 6 has a single-piece metal chassis with curved sides and a flat back. This gives the handset a robust, premium feel that is comfortable to hold and use in one hand thanks to the reasonable 138x67x6.9mm measurements and 129g weight.
Clearly aware of the popularity of the iPhone 6's design, Samsung has borrowed heavily from Apple in creating the Galaxy S6.
Specifically, Samsung has designed the 143x71x6.8mm, 138g Galaxy S6 with metal sides and a Gorilla Glass back and front that make it look somewhat like a hybrid of the iPhone 6 and Sony's new Xperia Z3.
The Apple link is particularly noticeable when you look at the placement and design of the Galaxy S6's single speaker, which is situated on the phone's bottom next to the microUSB and headphone inputs.
overall the design of teh S6 isn't terribly original, but it's a major step forward for Samsung and a definite improvement on past Galaxy handsets, which had flimsy-feeling polycarbonate frames.
Samsung claims that the metal alloy used for the Galaxy S6 is 50 percent stronger than on other high-end handsets and, in a clear swipe at Apple, "won't bend".
Having accidentally dropped both smartphones we found them reasonably solid, able to survive encounters with V3's office floor at least.
However, it's worth noting that the Galaxy S6's glass back is a fingerprint and dirt magnet that regularly needs polishing.
In terms of extras, the Galaxy S6 and iPhone 6 are reasonably well stacked and both come with a fingerprint scanner built into the physical home button. The Galaxy S6 also has a custom heart rate monitor situated next to the rear camera's flash unit.
We have to applaud Samsung for the Galaxy S6's design, but the fact that it borrowed so heavily from Apple is a sticking point and means, for originality alone, that the round goes to the iPhone 6.
Winner: The iPhone 6