This is similar to some of the other polls from before. I am essentially asking which one do you think was the best.
The beginning of the Sengoku Jidai was characterized by literally hundreds of Daimyos in which a Samurai would usurp power from the Shogunate and rule their own provinces. Despite the hundreds to choose from, the most notable daimyo in this early period were probably those which began the aggrandizement of their clans. This is a very poorly documented time period but also very interesting and probably very neglected by everyone.
My criteria for the time period is based on if the daimyos are from before Takeda Shingen. Mori Motonari does not count in this period; although he was considered very old by the main event of the 1560's he did very little before that time (doing things mostly during or after the 1540's), he was also the only living person from the beginning of the Sengoku Jidai still alive by then.
Saito Dosan 1494 - 1556
Hosokawa Takakuni 1484 - 1531
Ota Dokan 1432 - 1486
Oda Nobuhide 1510 - 1551
Imagawa Yoshimoto 1519 - 1560 (probably very underrated, he did after all conquer a vast territory)
Hojo Soun 1432 - 1519
Hojo Ujitsuna 1487 - 1541