Seconding Honor Harrington, but it gets Sequelitis Syndrome late in the series when the author decided "Yeah, I'm not going to kill my protagonist."
Don't even bother reading A Rising Thunder until he comes out with an actually new book in the series, and for the love of whatever you find sacred NEVER EVER READ SHADOW OF FREEDOM. I was pissed off enough at the chapter repetition in ART and SoF not only does that, but repeats the typos.
Be warned that Weber uses his novels for political soapboxing even more so than his contemporaries in the milSF crowd. They're solid enough if you can ignore that.
I've read the entire HH series, and the only times I noticed anything of the sort was in the Saganimi series, where most of the planets seemed to be aimed at his detractors.
To be fair, HH doesn't have nearly as much as the Starfire novels or his various love-letters to the Thirty Years War, but IIRC the main antagonistic faction for a long time is the ebul planet-of-hats Communist empire who are equally pointlessly evil and hopelessly incompetent. There's also the usual internal politics thing where everyone who isn't a Mary Sue social-progressive economic-conservative hawk seems to either be a fascist or a moronic peacenik libtard secretly in bed with the corporate scum.
At least there's no absurdly evil Catholic Church expy as the antagonist for his faction of anachronistically democratic monarchists or lost-in-space teenagers.
e: I mean, it's sort of sad, because he's a good writer and the battles are a joy to read. The two books he co-wrote with Linda Evans (I think),
Hell's Gate and
Hell Hath No Fury? Those were excellent.
In Death Ground and
The Shiva Option from the Starfire books were both great because he didn't bother with the harebrained intrigue subplots.
The Excalibur Alternative was equal parts hilarious and fun.
Path of the Fury/
In Fury Born was superb. That's my short list of recommendations for people new to Weber.