I chose gel first as sometimes I'm allergic to plasters. I didn't absorb well from the gel so was switched to Estradot patches and they were fine. It seemed much easier than hanging around waiting for gel to dry, and I put a reminder on my phone for patch change day. Estradot are nice and small, and I have never had a problem with them staying stuck. However, there can sometimes be supply problems with Estradot (as now), so I have had to switch to Evorel. They seem fine too, although bigger, and stick well for me. However, some folk have problems with them staying stuck down.
Sometimes people have problems with the pump packs of Oestrogel/Estrodose; as far as I can tell, it is down to the pump not dispensing the correct amount consistently. If you decide you would prefer to use gel, I would go for Sandrena at the moment. It comes in sachets and there are 0.5mg and 1.0mg sachets, so as Sheila99 says, you could still titrate the dose.
Just giving my experience, but I've probably muddied the waters for you now - sorry!
JP x