Randy, this is a good question
. I do think that personality matters a lot, but more in the sense that Jesus wouldn't want two people to marry if their age difference would be too much of a problem in their relationship (some people would mind the age spread, others wouldn't). This is one of many reasons that we should pray about things like this, instead of dating everyone we can, or even everyone we feel attracted to. I've felt attracted to many men who obviously weren't the right one, and on more than one occasion I've been glad that I never let the guy know that I felt the way I did. We generally feel attracted to many people over our lifetime who aren't to be our spouse (or even bf/gf).
I have heard of Christians marrying when there was a large difference in age, and they were very happy together, though more often the right matches are fairly close in age. On a psychological note, as you've probably noticed, many females consider an older man (even slightly older) to be more attractive to them. Girls mature faster than boys. By the time they get to be adults, most women will consider a man who is at least a little bit younger, but they still usually don't want to think of them in a protective way; they usually want a hero, and guys have a need to be the hero. Most men seem fine with a lady who is a lot younger, but men are all different too. It's really neat how God sorta made each gender right for the other's needs....even just in a friend way, it seems like men and women make good platonic partners for each other. Most of my friends are male, and whenever it's mentioned in a thread, many (nearly all, if I'm remembering correctly) of the girls say that most of their friends are guys also. I'm generally most attracted to guys who are older than I am by up to 10 years or a little bit younger younger than I (perhaps up to 3 years younger? It's not a specific formula; it varies a bit). I like being friends with people, and I try to leave the attraction up to our glorious Lord, Who knows my heart, personality, devotion level, and future, and that of my possible matches also
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As far as the Bible goes, I know of no Bible verse that mentions a large age difference as being forbidden (other than the one about treating younger women as sisters and older women as mothers (1 Timothy 5:2), but I take that to mean the women who are MUCH older, and it doesn't specifically say that they can't marry a younger man). When a married man died before having children (in the Old Testament), his brother would marry the widow, and often the brother was younger and the widow would even have to wait until the brother was an adult before they could marry. Things are a bit different now that Jesus replaced the old law, but anyway, it certainly suggests that there was often a large age difference.
One more thing; the younger you are, the more your parents should be involved in these things. Since there are often minors reading the Single's Forum threads, I want to say to them not to go against their parents wishes. Even if you are an adult, if your parents think that it's a bad idea to date/become close to a specific person, it generally is. I'm not saying that it's an absolute thing, but God gave you parents for a reason, and if they think that the two of you aren't a good match, you should at the VERY least re-pray about the whole thing. There's safety in a multitude of counsel (Proverbs 11:14), and as you know, romance is pretty serious; it's so easy to get hurt.
Here is another thread about age differences in relationships:
http://christianchat.com/christian-singles-forum/22344-half-your-age-plus-7-a.html
