Welcome to the forum.
I don't really have favourites, I'm happy to buy from whichever company supplies the figures I want. And different manufacturers have the best examples of different subjects.
But here goes. I grew up with Airfix in the days when That's all there was, 60's/70's. Airfix were great, they covered nearly the whole of history and they gave me a love of small figures that I still have today. Their Highlanders were the first ever set of Napoleonics I bought. Perhaps many of their sets have been surpassed in quality by those of newer manufacturers but they still have a place and some of them still shine. Their Royal Horse Artillery are still the best, their Prussian Landwehr will still be No.1 for another week or two and my all time favourite set is still the Airfix Ancient Britons, and will likely remain so.
My areas of interest are Napoleonics, mostly for The Hundred Days, Iron Age Britain, The Jacobite Rebellion and a couple of other side lines. I have more sets from HaT than from any other manufacturer. Simply because HaT have produced more of the Napoleonic sets that I want than any of the others. I recall reading haythornethwaites books and wondering how I could convert all of those more obscure units, well I don't need to, HaT made them all. Some of their sets are better than others but I think they are all good usable sets and some are just excellent. HaT also have a good number of Celtic and Roman sets and a few of those side lines.
Revell had some really very nicely sculpted sets of Imperial Guard Grenadiers and Chasseurs a' Cheval. And British infantry, rifles, Houshold cavalry and foot artillery. I do wish they had reissued all of their Napoleonic range instead of just half of it.
Italeri provided me with excellent figures of Wellington, Blucher and Napoleon and staff. They also have really nice sets of French cavalry and guard horse artillery. They did have some issues with scale creep on their newer sets. Very nice figures, just a bit BIG. Italeri also did us a favour by reissuing the ESCI figures I needed like Imperial Guard lancers and foot artillery, British hussars and, most importantly the set I converted to get my long wanted Highlanders.
Strelets have really wonderful personality figures. Whenever I have a long, long period of not painting anything I get out of the rut by painting one of these fabulous little characters. They also have a good Napoleonic range for those who want variety in their army or for those who just prefer the Strelets style. Their French siege engineers are real gems. Lately Strelets have been producing some very nice looking new napoleonic sets. They also have some great Roman sets that I hope to catch up with.
And, it has to be said, I love
Strelets and Redbox for giving me figures for the Jacobite Rebellion, I hope they will both continue this range.
Zvezda made some beautiful figures, the sculpting is exquisite. If they have a fault it's that they are too good to really fit in with all the other figures. Their French foot artillery is the last word on the subject and I've been taking the opportunity to buy the reissues of the other sets when I see them, didn't have them before.
Waterloo 1815 has Excellent figures for Orange, Picton and Brunswick and ACTA has a couple of nice French cavalry sets and i think their British foot artillery set is the main stay for this branch of Wellingtons army.
1. HaT, I like the style, and sheer numbers!
2. Airfix, seniority, and still good figures.
3. Strelets/Redbox, I had them at no.5. The Strelets style is not my favourite. But credit where it's due, they are actively producing new sets, their latest sets are very good looking, their personality figures are fabulous, Their figures are real characters when painted and, in conjunction with Redbox, they gave me Jacobite rebellion figures.
4. Italeri, gets the nod over Revell because they reissue their figures, and ESCI's.
5. Revell I really really like their Napoleonic sets but Italeri reissues theirs.
In that order? Maybe... ish.