#42 - I think the most appealing thing about these two logos is the color scheme. I like it! I prefer fonts more like submissions #24, 25, 27 and tend to lean towards straight lines vs. curves. The mark is interesting... but not quite there for me. Maybe a something a little stronger and more corporate/professional.
#41 - Similar comments as #42, except that I like focusing on "Impact" more than on Payment Systems (similar to #42). Not quite strong enough.
#45, 73 - I really like the balance and feel of the font and these logos. Generally, I like the colors, but I would prefer solid colors instead of gradients. I do like the mark and would like to see some variations on that... maybe some with just the "i" instead of the i and p. Thanks for the great designs!