I own an Eclipse and an H&S Infinity, I wouldn't give up either one. I have to say that yes, the H&S needles bend easy. and yes they are expensive, but I've bent both of mine(2 in 1) and straightened them 20 times and have no issues. Never have I considered buying a new one. I know I will someday, but not yet. I've bought one nozzle and it was my fault for shoving paint through.
If I were to recommend one or the other... it's hard to say without knowing how close the Evolution is to an Infinity. The craftsmanship of H&S is noticeably different, it's smooth, consistent and the .15 needle is able to do detail beyond my skill set.
The Eclipse is a warhorse, tough as nails and cheaper to maintain. I have literally used mine every day for over a year and a half, since I bought it. I'm disabled and paint a lot, and I don't see myself outgrowing the Eclipse for a long time. As far as detail, again, the .15 needle does make super thin lines, but I can't control my shaking enough to use it to it's full potential,
. The detail I get on the eclipse is pencil thin or finer, plenty fine for most beginning or intermediate artists.
As for the personal aspect, I love the feel of my H&S. I feel like a better artist when I use it, it's so consistent.(if my paint is up to par)
If I honestly had to grab one in a fire, I'd take the Infinity.
If I honestly had to buy one or the other for a friend or family member, I'd probably go with the Eclipse...it's cheaper to maintain, parts are easier to get, and like I said it's good enough to grow as an artist for a good while.
On a side note, if your paint is getting clogged in any airbrush, it probably just needs to be strained and/or reduced more. My tiny .15 needle handles AA and Wicked just fine if I strain the chunks and reduce it properly. Spitting sounds like a split nozzle without knowing more.
So, this probably didn't help at all but that's my point of view.