The 4228 and the HD7696P will both have no problem receiving W28DB. Again, I favor the 7-69 design. For a 2-way split, I don't think an amplifier is needed. You have 8 dB of coax and splitter loss, tops. Both of those antennas have more than that much gain in the UHF band. Pick the 7-69 type and you get significant gain in the high-VHF band also, leaving you with a good fade margin overall.
It sounds as if you're referring to WUGA which according to
http://en.wikipedia.org/wiki/WUGA-TV used to be identified as WNEG. If that's the case, you'll need to consider dedicated antenna aimed at 268° magnetic. I would recommend antennas such as the Antennas Direct 91XG and Winegard HD9032 & HD9095. In this case a preamplifier would be needed. The previously mentioned models would be appropriate, the CPA-19 at the top of the list.
There a several ways to deal with signals from multiple directions. Rotators are not the only option:
http://forum.tvfool.com/showthread.php?t=2882
http://forum.tvfool.com/showthread.php?t=820
Resist the urge to use an amplifier thinking it will make a weak or marginal antenna choice better. The only thing you can count on an amplifier to do is, 'push' signal further down the line. No amplifier 'pulls' signal out of the air. If the antenna is not receiving a usable signal, an amplifier can't magically invent a good signal.
http://forum.tvfool.com/showthread.php?t=1514
Finally, the 4228 will receive some signal in the 150 MHz range. If I can find a copy of a 4NEC2 model, I'll run the sweep in that range... But the 7-69 will do far better, it has elements cut much closer to that frequency.