Turkey was grossly underrated in the jury years, mostly because it was the only Eastern country with Greece and Cyprus (also underrated). Although it did send really bad songs at times.
I love many Turkish entries in the jury years, much more so than in Turkey's golden decade (2000s). "Dinle" is of course an absolute classic, but there are many other great entries (of those I know: 1975, 1980, 1984, 1987, 1990, 1991, 1992, 1996).
In the 2000s, I like "Every way that I can" although like many others I feel it's a weak song for Sertab (an otherwise AMAZING singer). "Düm Tek Tek" is one of my favourite ESC songs if I judge by my iTunes counter, it's indisputably catchy and has been reprised many times (most notably in Afrikaans - by Andriëtte - and in Arabic/French). And Turkey 2006 is not great, but boy were those dancers HOT! =D