The first set looks like they will do the job. I have never seen a real reason to go with 3/4 way speakers as the smaller speakers are not going to make much sound over the primary tweeter and the woofer. Bass difference probably not, I lost some of the bass sound when I upgraded to my polk 2 ways in the front. The sound quality though is 100 times better.
One last thing regarding head unit power. The manufacturer gives false ratings like 50watts x 4, or 200 watts output. Head units are usually capable of producing 18-22 watts RMS. This is not with brand or anything but its just the way head units have been. To give you an idea the smallest true 200 watt amp not digital but class a/b was about 8"x6"x2". Larger than a head unit. No consider you have the mosfets, the torroid coil, resistors, capacitors, IC's, and circuit board that would need to fit into a smaller space with a CD player as well as multiple converters to get the sound to the on board amplifier. Just saying keep that in mind when looking at different components for your sound setup.