Can't figure out who'd give a better LOR

[unicornsarereal]

So, I have the perfect recommender. I'm applying for an english ma in 18th century lit and have a rec secured from one professor. I took three classes in 18th century literature area, two with another professor and i want to study that same material in my program. unfortunately, i've emailed her, called her, emailed her again. she says she's willing to help and talk with me, but she just disappears off the planet every time i say okay, let's set up a time!

I think it may be best to move on, but here's the dilemma: do i ask a professor whose class i got a b+ in, whose subject is tangential to mine (19th century), and who i felt like didn't really like me, or a professor who is sort of known in his field -- history -- but taught me in a required english class, i got an a in it, he really really liked me. 

any suggestions?? i don't want this situation to hold me back!

[fuzzylogician]

The professor who knows you better is the one that will write a better LOR. That matters more than that he studies the exact same topic as you. If you can't get your prof to reply, I'd go with the prof who likes you and you got a higher grade with, as opposed to the other one. 

[unicornsarereal]

perfect advice, thanks!