I've never imported a character. The beginning and middle parts of PoP are the funnest for me. It gets boring if you are so powerful that you can just press charge and go do something else for a few minutes.
In this game, I used the first 5 Qualis Gems I got on improving my own stats. It was a major help in making me up to the task of killing higher level enemies in the first 150 days of the game.
I have a few tips for getting Gems from spawns. The most important is to talk to a lot of lords and in taverns to generate them. Next, target the most vulnerable ones, the adventure companies that are hired as mercs. You need to anticipate when a major battle or battle that they have a chance of losing will happen. You can do this by asking lords what the realm is doing. If they are going to siege a town, it's likely that the enemy will converge their army and meet them there for a battle. Join the battle on the side against the adventure company and hopefully you will capture them. In the case where there is virtually no chance of the adventure company losing, they still will come out weakened, maybe weakened enough for you to attack and win. Make sure the named spawn leader is healthy enough to spawn in battle. If he doesn't and his army loses, he will disappear from the game forever and you will not be able to capture him. There have been several instances where I had to help the adventure company from being defeated because the leader was injured and so if he were to be defeated, he would be gone forever. I just follow him around then until he's healthy enough (I estimate around 26% health) and then attack. Also keep your eye out for battles involving large spawns. Sometimes the Ravenstern will amass their army and take out Wolfbolde. You want to be there if they do because you will get a chance to capture him no matter how small and inconsequential your army is.