A UNION Made In Heaven, Or Hades?

Hi all, Hope everyone is well, my poor Steelers got chomped and spit, and I've been spending lots of time today eating my words *sigh*.

However, in between all the crow-chomping, I have run into a problem I think I am too closely involved with to see around.

I have two identical tables in two different databases. They contain (for simplicity's sake) a symbol, and a ranking for that symbol. The two tables should be the same, but are sometimes not, so I am trying to figure out a way to select from the tables in such a way that I can say:

"Symbol xxx is ranked nn in table t1, but is ranked mm in table t2"

Perhaps I am getting too fancy, but thought I could do it in a single select.

here's what I have so far:
CREATE TABLE tMyPicks (
sym VARCHAR(5) NOT NULL
, rank INT NOT NULL
)

CREATE TABLE tUrPicks (
sym VARCHAR(5) NOT NULL
, rank INT NOT NULL
)

INSERT INTO tMyPicks (sym, rank)
SELECT 'BFA', 1
UNION SELECT 'BFB', 2
UNION SELECT 'BFC', 3
UNION SELECT 'BFD', 4
UNION SELECT 'IMA', 5
UNION SELECT 'ICU', 6
UNION SELECT 'SOB', 7
UNION SELECT 'SORU', 8
UNION SELECT 'HERE', 9

INSERT INTO tUrPicks (sym, rank)
SELECT 'BFA', 1
UNION SELECT 'BFB', 2
UNION SELECT 'BFC', 3
UNION SELECT 'BFD', 5
UNION SELECT 'IMA', 7
UNION SELECT 'ICU', 6
UNION SELECT 'SOB', 8
UNION SELECT 'SORU', 4
UNION SELECT 'NHERE', 9

select sym, rank
from (select sym, rank from tMyPicks
union all
select sym, rank from tUrPicks) AS MyUnionTable
group by sym, rank
having count(*) <> 2
order by sym

DROP TABLE tMyPicks
DROP TABLE tUrPicks

This results in output that is a step away from what I want...that is, it at least identifes the individual symbols (and the associated ranking) that are NOT the same in the two tables.

IF there was a way to show which table the output of my union came from, I would be good to go, and thought I could add a literal to the select lists from each table in the UNION, but that destroys my group by clause.

Any thoughts? I suspect I will have to go away from my use of the UNION, but when I try using a join, I still have a problem with the grouping logic.

I suspect I am trying to be TOO dang "fancy" but at the moment I think I am too close to the forest to see the trees. :(