@prcguy, thanks once again. My opinion too matches some to all things I envision for myself and radio. You're pretty good at this. Oh BTW maybe due to not having tasted the digital stuff applicable, I the OP also tend to not care one way or another on it. Digital anything pro or con is not expected to sell a radio to me. Could that change? Sure, but right now it hasn't. This is my thinking as I've yet to experience or do most anything radio let alone base HF. I group all 3 of these radios mentioned in these latter posts as all legitimate prospects for my ham shack, the 991A, 7100, and 7300. No particular order or meaning to be inferred on that ordering. (At least I didn't think so at first glance. But read on and I think subconsciously it in fact does mean the order of preference...added in just before posting and after typing.)
The 991A vs 7300 for the visuals, the waterfall and such. Mostly equal discounting band access and such. Transmit power is the same I think, and so on. 991A packs more bands and probably other capabilities like all-mode (I think) into a smaller package vs 7300. Also a slight plus is I think 991A is slightly smaller physically, but not enough to sway decision either way, just noted that bit of info is all this means. I think the display on the 7300 is a bit bigger and better in images and YouTube that I've seen, especially an Eric KJ4YZI Ham Radio Concepts and 991A vs 7300 YouTube video review. I've not seen any of these 3 in person though, or operated obviously. Sez me 991A "wins" as I say the added bands are important.
991A vs 7100, bands are equal or nearly so, 7100 is remote head, can play mobile role a lot better, cheaper, more compact, but without the display aspect. 991A wins due to again the larger display including waterfall the 7100 lacks. I think differences between these 2 is physical, display and the actual unit and possibly that only. 991A wins if it's to be a base first always only. Yes I entertained daydreaming of a 991A mounted in the car. Doable but practicable or makes sense? NO not really, but that hasn't stopped me from doing what I felt like before. And that right there is why it is POSSIBLE that a 991A may be bought to be a "mobile". Yeah OK maybe in Dave's world...me.
Further 991A base or shockingly a mobile, 7100 mobile but for me it's not a base, but it plays that role if I changed my mind.
On none of these 3 can I have an opinion or favorite regarding how it receives or transmits and how it sounds in doing so. Ditto for the "operating" experience. With no way for me to grade this aspect, all have to be given equal consideration on this area alone. I think the 7100 may lose some points due to smaller display, not due to color lack. Even so it ranks more or less equal with both the others still.
That seems to be my story and I'll stick with it until I change my mind on some or all the above. Which will happen sometime and for a certain timeframe. Given further delayed purchases, it'll probably revert back to this more or less verbatim.
In some ways the 991A is my overall winner, but each of the 7300 and 7100 could eventually win in the end. Availability and cost could send any irrespectful of any like or dislike of any attribute. I tend to have a list of radio, antenna, etc. and say OK it's time to buy. Look at price and availability then click the BUY button. Flip the coin and any of these 3 may "win" just due to that. Going with my gut, 991A is overall ahead somewhat, 7100 is physically more versatile in base or mobile better than the others, 7300 probably is the first one to lose though. No real negatives, no dislike for Icom, none of that at all. It's about the same price as a 991A, but has less bands to whet my interest is what comes first.
Dunno, but that seems to be the top o the head thoughts for me on my consideration. Blatant not mention any real specs, so noted as intentional for some unknown reason. Maybe because I perceive them all to be more or less on equal footing in that aspect. Sure I could be incredibly wrong. OK well that is NOT a first. And better retort is "SO?"
Oh no, I just hope I didn't build a case where I buy all 3 and stifle the conflict. No trust me only one of the 3 will be bought as the first. One of the others? Yeah maybe later.