I agree with everyone else...keep the one that has a great fit and feel. A PERFECT fit and feel. Sell the others, or all of them, in pursuit of a bike that fits and feels great.
You're asking the wrong crowd about CF and aluminum. Uhmmm...to answer the question...NO. Unless you're racing, or keeping up with others on CF and aluminum, steel offers a lot of advantages. You can get a lot more bang for your buck with classic and used steel than with new stuff.
Example...even assuming you pay max dollar on ebay...you can have a $1200 bike on ebay with top of the lines parts (for the era)and a well made and time tested top end Italian or custom frame.
For $1200 you can have a mid-level, Taiwan made cookie cutter aluminum bike with miid range parts.
In 10 years the cookie cutter will be worth maybe $300. In ten years the classic will probably be worth more than you paid.