What Is Best To Collect?

I think the best thing to collect is those 6" long, greenish paper things with presidents on the front. You know the ones with numbers on each corner like $100, $500 etc.

depends on why you are collecting. If you are collecting for investment, probably ASE's since they can be more stable and easier to liquidate. Morgan dollars are good if you are collecting for the future.

I say just collect what you like. But, as everyone has said, Silver Eagles are pretty much just pretty chunks of bullion and Morgans are valued more as collectibles (though in poor condition they too become mere silver pieces).

get both. Both are highly desired at the moment. The morgan has history and precious metals content behind it. The silver eagle has lots of demand behind it.

Yeah, it depends on the "reason" for the acquirement of said coins.

If you are wanting "silver profit" money.......folks buy bullion Eagles.....or really "junk silver" of ANY kind of denomination, and then when they feel the price is right for them, they sell it for whatever profit there is.
This can work against you too though. If you hold up until the "wrong" time, silver may be well below what you paid for yours, and then you're NOT going to make a profit, but have a loss.

Now for "collecting" purposes......I say BOTH !
I love the Morgans. I love the Eagles, esp. the Proofs !
Some key and semi-key Morgans can be EXTREMEMLY PRICEY ! And if you can afford some of these, they tend to hold their value really well, like most other Classic coinage, regardless what the "silver market" does. Because their values has little to do with the Silver contained therein.

Good example is the 1886 O Morgan. In MS-65, it's value can be edging close to a quarter of a MILLION dollars !
Or the 1889 CC Morgan in AU-50 can be worth well over $7,000 or in a low grade, still a couple thousand dollars.
So, it's value, obviously, has Z.E.R.O. bearing whatsoever on the rising or falling of the Silver market, which is so fervently popular right now and has everyone's attention.

1909 S VDB Cent.........starting at around $1,000.00 in poor condition....it's value has NOTHING whatsoever to do with the rising price (or falling price) of Copper. .....

This is why it's important to clarify, to others AND yourself, the "reasons" why you want to collect coins.
If it's for their beauty, history, the challenge, etc., then you just need to buy the best quality coins that you can afford, and work on completing Sets of them by year and mintmark. This will be quite fulfilling for you. But, whichever denomination you do decide to collect, keep in mind that SOME are going to be next to impossible to complete, unless you're very wealthy !
Nice quality Classic coins generally always hold their value well through the years. Higher quality coins in grade levels, will always warrant more value than their lesser quality counterparts. A "grade" on a coin can mean Tens of dollars, Hundreds of dollars, or Thousands of dollars of difference on the SAME COIN.
You can buy one coin for $35.00 in a poor grade, or buy the same year/mintmark of coin in a higher grade and you'd pay $385.00. (assuming a fair dealer is involved of course)
And some folks "prefer" circulated quality coins and not the higher grades for the look in their albums....it's all a matter of preference and taste.

But like our friend Condor says......... if you want an "investment" go buy a Mutual Fund ! ...

What is best to collect? Simple answer, what you like and/or can afford. If you can't afford the coins you can't buy them so what's the point in trying to collect them. If you don't like the coin you aren't going to get any pleasure out of it even if they do go up in value so why bother. But if you truly like a coin series you will be happy even if they don't go up in value and often even if they go down. So collect what you LIKE!