Spike/Rarity is actually one of the ships I can't enjoy. It just reminds me too much of all the guys I've known who fawned over some pretty girl like a fool instead of trying to find a good match for themselves. Sweetie could be that match.
look, i understand some people like that ship, but do you really have to go out of your way to get someone else's art customized to your personal tastes. if i see art of a ship i don't like, like sparity or celsticord, i just move past, i don not think of finding someone to change it to the ship i prefer. and while i know everyne has their own idea of what the ages of everypony is, spike is most likely at the age of 9-10, which i would say the people who created the show, such as faust, agree. while rarity is somewhere beyond the age of 17, putting a minimum of 6 years between them. i don't think age should be much of a difference when your older, my grandparents had a four year age gap, but when they are younger, it is wrong, if a senior in high school dated a fourth grader, that would be considered wrong, and even if you say it is a different world, it is more human than pony based on the fact they have language, higher intelligence, etc. now, i am not trying to disprove sparity, i am just trying to give you a ballpark of why people don't support sparity but instead spike belle, the two being closer in age
yes, a lovely fanfiction, but i don't think it is enough to just turn me from spike belle or my preferred shipping for rarity, rarishy. if you want, i could send a link to the fanfic that got me turned away from sparity and to spike belle and you could get a look at what i am coming from.
Thought of these two a long time ago, it makes a bit of sense if you think about it. They would mature at around the same time and in time spike would find her as alluring as her sister, but a better match because of the lack of generational differences.