Personally, I dislike aftermarket speakers in the door panels. The tweeters were a solution to not have to replace the panels, and turned out pretty well. I wouldn't put anything else in the door, however, unless I could make it look factory as possible. A speaker with a stock style grille in the lower portion could look good.
My door panels are likely different than yours, being mine is an 88 and yours is a 94. The early trucks used a very plain/flat panel which became the lower level door panel a few years later.
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On my 98, obviously it has the newer style door panels, but I added a GMT800 pillar tweeter to the door panel above the stock speaker. The reason being is the escalade/denali switch panels do not have a tweeter like the stock speakers did.
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