My 5510 suffered a display failure from just dropping it on the kitchen table from no more than 30cm. Had it replaced, never had any issues afterwards.
My 3310 was very good, but not indestructible; my dog ate it.
My 6230i lasted 6 years before it developed the first issue that required soldering, but nothing I couldn't fix myself. It still works like new, though it doesn't look the part.
Current HTC Mozart survived a few drops as well, most of them I was sure would kill it. Few scratches and bruises but could still sell as new on ebay