Currently trying JM Focal Electra 1007 BE's. Don't have the sub(s) hooked up yet, but find the tweeter a little forward and the image a little smallish for my taste
Try something with a soft dome tweeter and definitely go for a sealed box. Something that begins to roll of gradually at 80 Hz would be ideal and place them close to the wall (within two feet).
The JL's are a sealed sub - so I'd definitely go with small sealed box monitors...nice and tight punchy sound to go with the JL's and less phase issues compared to a ported design.