Clementine is likely to build up similar support. However, currently, the only script or plugin in Clementine is a filter that adds the sound of a storm -- something that seems so pointless that I can only assume it is a proof of concept.
Verdict: Amarok. Clementine simply isn't advanced or old enough to compare in this category.
The configuration features are where the two music player's common origins are most obvious. Many of the settings and headings are next to identical. The main difference is that Amarok has done more tidying, listing all online services under one heading, instead of separately, the way that Clementine does.
Clementine does have one feature that I would like to see in Amarok: the ability to convert massive numbers of files from one format to another. Amarok's team may reason that it is a music player, not an editor, but the conversion feature -- which Clementine calls "transcode music" -- can be useful, especially if you want to convert MP3s to a free format like Ogg Vorbis.
Verdict: Clementine. Transcoding could use a clearer name, but it is still a feature I envy.
At this stage in its development, Clementine cannot really match Amarok. It starts faster than Amarok, but not significantly faster. Similarly, while it is more stable than some of the early Amarok 2 releases, it does not seem more stable than Amarok 2.3.1, the latest release.
Nor do I see any advantage -- as some have -- in the fact that Clementine uses SQLite, rather than MySQL. Although Amarok's connection to MySQL seemed chance early in the Amarok 2 series, that problem, too, has been corrected. Now, it makes sense that Amarok should take advantage of the fact that MySQL is already installed for KDE, and use it as the default database.
Clementine does seem more lightweight than Amarok, so I would recommend it for older systems or ones with limited hard drive space. It is already better than many other music players, including GNOME's Rhythmbox.
But a rival to Amarok? Get serious. I like Clementine, and plan to keep an eye on it, but, at this point, it requires either special pleading or long-established prejudices to argue that it has many advantages over modern Amarok.
ALSO SEE: The 75 "Funnest" Open Source Downloads