Hi everyone, as the title says I'm looking to start collecting some more figures, yet I dont know where to start or what lines are better/to avoid. I grew up watching Transformers Armada and still have some of my original toys from that series, and I do have some MDLX figures as well as WFC Starscream and a G1 legacy Starscream but Im interested in more of the classic G1 figures. (I guess I should say not ones from the actual 80's but just the style of and looks) So my questions are..
1) Whats the difference between Studio Series and Master Piece figures?
2) There are so many different versions/names for Optimus out there, how can you tell the difference between some and which ones to avoid? I know some of the names are just the Japanese version of his name like Convoy and Ginari.
3) What are all of yours personal preference on series/line of figures to get?

Thanks for any info!