Handjobs included. Handjobs are nice because I can also play with myself (or have the gentleman feel me up) while I'm doing them.  
I like 69, but it can be a bit difficult to focus because I'm also being stimulated.  
Of course being well groomed and fit is never a bad thing. The grooming is more important than physical fitness, in my opinion. I can enjoy almost anyone, as long as I'm not choking on hair, being scratched by stubble, kissing someone with really bad breath, trying not to inhale due to their smell... etc.

There's something "innocent" about giving a handy j. It feels a bit like being in high school/college again for me. I love the nostalgia!

But, now that I'm older and have truly learned my way around male anatomy, using my hands just allows me to do so much more! Eye contact is a huge thing for me- I love to watch my partner react to whatever I happen to be doing to them.

From a super enthusiastic and hot/heavy petting session to something more sensual and relaxed- hand jobs are sexy AF. Not to mention Lingam massage and prostate play that can be incorporated!  

But alas, to each their own, and not everyone has to be into all the things at all times. I love face-sitting/69, but there comes a point where my hips/shoulders decide they arent 23 yrs old anymore and then it's time to switch to something else, and while giving hand jobs is certainly super hot, 30-40 minutes of hand job can get... well... painful. I do a lot of edging sessions, and when I first started, I developed tennis elbow. :P

And a lot of lube, a bullet vibrator running over the boys, up and down the shaft/right under the hood, light nails that elicit immediate stiffness, being able to watch my partner and read his body react to my touch... I find handjobs incredibly erotic and I also enjoy the power of having total control of someone's cock and pleasure.

I enjoy stroking and working a big load out a a nice hard cock!

Personally...

During my sensual body work sessions..I love and can't stress enough how much I LOVE hand jobs.
The control and the feeling of edging you.. quite amazing.

Of course this is one of those "we all have an opinion " type things.

One of the best qualities of a good lover is enthusiasm. If you’re on the receiving end of a hand job and you know your partner is enjoying what they’re doing, it makes the experience so much more pleasurable.  
I may have few techniques to share