The conclusions are difficult, because the printers have completely different characteristics and both have multiple settings that trade quality for speed ... although most of the time the quality difference is minimal bordering on imperceptible.
This subject points to a recent post here complaining about Michael's "review" of the Canon iPF6100 printer.
That simple fact is that all three printer manufactures have converged at a point where the actual technology is pushing the limits of reality...between the nozzle sizes, print head speed, ink gamut and image quality, it's becoming very much a question of other aspects of the printers that becomes more subjective realities. 1-5% larger total volume of color will simply not plot reasonably in gamut projections. Print speed depends entirely on the printer settings and since there is no EXACT setting that can be set to produce EXACTLY the same output results, speed is a subjective result. Once you get down to 3.5 – 4 picoliters, dot size is another factor that requires specialized equipment to measure...but even then the printing of photographic images will likely be more impacted by improper output sharpening than printer limitations.
Canon, Epson and HP are all pushing the envelope, hard!
So, while somebody might LIKE to have qualitative, scientific tests and results, it ain't gonna happen cause the differences between printers are really now more based upon things like usability, cost of operation, service support, easy of access to supplies and inks.
Thanks for doing the speed tests...but the results are pretty much what I expected...it's pretty hard to nail down EXACTLY what the results actually mean.
The "marketing document" produced by Canon is a typical sort of "comparison" you expect (or should expect) from marketing people. They tell you what they want you to think and use number to make it appear to be reasonable, and people will tend to believe the line of bull they write.
The simple fact is that between the top three printers from each company, the differences are VERY hard to nail down. Add to that is the fact that technology is a moving target...the iPF6100 is the most recent printer to be released...but is it the best? It may be if the other factors fall in line for what a user may need.
Also, don't expect Epson and HP to quit making changes...what will happen is anybody's guess (well, some of us may know more than others but are unable to say anything due to NDAs)