If you are looking at traditional awnings, they are all pretty similar. The only difference is in quality. Dorema and Bradcott are major players in the field, I personally think Bradcot are better quality having had both, and of course there is Isabella which is undoubtedley the highest quality, but for that quality you pay a premium. You would need to decide if that premium is worth it. As an example, a 950 size Isabella Ambassador will leave little change from £2000. Dorema on the other hand have had a "factory clearance" site running for some years and you can get the same sized awning for as little as £579 see
Here. Bradcot are priced somewhere in the middle.
Of course you also have to consider whether pole is the way to go, or do you want an air awning. If this helps, I tried an air awning twice, once in the early days and once this year. On both occassions I came home and sold a once used air awning on Ebay. People will tell you air awnings are simple and quick to put up. For me the hardest thing is pegging out on hard standings as both knees are shot through and of course an air awning still requires pegging, so for me it didnt save anything. Air awnings are quite a bit heavier than a traditional awning without the poles included, and can be quite a lump to lift and feed through the awning rail. They suffer badly from condensation and there have been issues with leaking or unreliable poles. Not everybody has that experience, but its enough to be a consideration. Indeed we had a pole explode in Cornwall this year and when that happens, a running repair is difficult. Sometimes with poles you have a chance.
With porch awnings you have to give consideration to where your windows are on the caravan and will the porch fit between them, unless you dont mind a half covered window. Again, there are three major players and of course and absolute myriad of cheap and nasties.
One of the things I never used to get right was packing away and i struggled for years. Then watching the Isabella "putting up and packing away vids on youtube it revolutionised the way we do things.
See
Here and
Here
As a point of reference, I had always been taught to close all doors before tentioning the awning. We use the Isabella routine and its so easy. We tention the roof whilst the awning is low, and being a shorty I dont even need steps that way, and it works. Packing away, I dont know why we ever struggled.
It really is horses for courses. If you are doing lots of short weekends, then a porch maybe the way to go, but if like us you go less often but for longer, a full awning possibly works best. If a porch look for one that you can add an annex to if you may need extra space or sleeping.
Tip. If you wait until the end of the season and the manufacturers announce their new models, there are bargains to be had. We have just bought the Ambassador Insignia (Blue for this year only) and the week they announced next years Dawn clour scheme we paid £1499 inc carbonX instead of £1960.
Of course, there are some very good used awnings on the bay of fleas. People change a caravan and often the awning wont fit, and thats their only reason for selling. I wouldnt be afraid to buy one off the bay.
Edit to say...........air awnings can be quite unforgiving on an uneven pitch. I wouldnt have believed just how much until I tried it.