At this point in my watching of the series, I'm enjoying both of them, but I'd say I'm enjoying farscape more. B5 isn't bad by any stretch, I like it, but if I had to choose only one at this point, it would be Farscape. I'm still excited to watch more episodes of both shows.
At this point in both shows, that doesn't surprise me. It will be very interesting to see how your opinions develop later on, though.