The first 2 are lovely, although the livery on the 1994 car is terrible directly in profile (fine otherwise).
I don’t like the yellow on it and the fact that it appears to have the wrong (post-2005 era) front wing, but I quite like the 2003 C22. I’m a fan of the way the sidepods began to get far more curvy from that year on. And I don’t mind a few of the appendages, as it was before they became too cluttered. In fact, I rather liked the 2004 cars too. I find cars prior to 2003 (from the mid 90′s on) to appear too blocky and often too similar.
Going by profile, where you can thankfully ignore the odd wing dimensions, I do think the current car is gorgeous- I like the height of the rear wing. I’m not such a fan of it from above.