Which is best, or which is correct?
Does one study a particular text to determine what is overall Biblical doctrine?
OR
Does one use overall Biblical doctrine to determine the meaning of a particular text?
Exegesis is the proper way to do Bible interpretation! "Ex" in Greek means "out" or "out of!" . We come to the Bible and listen to what it tells us. Not just a verse, or a passage, although we can focus on it. Good interpretation requires we understand and know the whole Bible. We try and take "out" of the Bible what it says.
And I have to disagree with Dino, here. Yes, read the Bible from cover to cover. Three chapters from the OT and 1 of the NT gets you through the Bible in a year. Then read it over, yearly, for the rest of your life. I'm in Leviticus right now. I used to find it so dry and boring. Now, I am learning so much in it. Leviticus doesn't just happen in the first or 10th reading. But 50th? Wow! What an amazing book!
Eisegesis! From "eis" in Greek Meaning "in" or "into." So, reading into the Bible what you want it to say! Your second definition really sums up the evil that is Eisegesis!
"One uses overall Biblical doctrine to determine the meaning of a particular text." Never do this. It is overlaying your ideas, or some theologian's ideas on the Bible.
Please take a course in Bible Hermeneutics. My last pastor told me it is the most important course he took for his MTh.