If there's only one type of objects you can look at...

[Scott]

deep space ones

[emadmoussa]

deep space ones

Star Trek ?

[scarp15]

The question is a bit like being asked, from your Christmas dinner plate, what one item would you choose to eat, at the expense of everything else (and yep I love sprouts too).

Whilst globular / open clusters hold my attention for the longest periods, as they can be so spell binding, my 'roast potatoe' will have to be galaxies, simply because most of my observing now takes place at dark locations and because they captivate an almost childhood like sense of mystery.

[ScottS]

Orion. That'll keep me happy. Tons of cool stuff there.

[goodricke1]

clusters... 'diamonds sprinkled on a velvet canvas'... oh yeah

[michael.h.f.wilkinson]

Orion. That'll keep me happy. Tons of cool stuff there.

I would prefer Virgo

[Stargazer_00]

I would've said galaxies or globs before but as time passes im increasingly finding myself thinking planets.  Certainly im geared up for deep sky objects as much as I can be but thankfully my kit also works well on planets.

We really need to get early evening major planets back in the sky.  Feels like months since Saturn left the sky and I've yet to see Jupiter this time around.  Very much antipcating Mars after having not seen it for over a year.

[webboid]

Easy choice Deep sky objects

[slickfonzy]

I'm tempted to choose clouds, as I'm at least guaranteed to see them when I go outside in the evening! 

But when the weather permits, I do like solar system objects as the LP here doesn't favour the faint fuzzies.

[LukeSkywatcher]

It would be nebulae for me. 

[Astro Imp]

I'm tempted to choose clouds, as I'm at least guaranteed to see them when I go outside in the evening! 

My thoughts too, but being serious a tight call between solar system and clusters.

[Pig]

Not sure