Previously I have written about that tables are wonderful in papers.
This is because science is all about comparisons.
However, I think tables should not be shown [banned?] in seminars and conference talks.
Flashing a detailed table of data on the screen for a minute is useless. The audience does not have nearly enough time to absorb and process the table, even when you verbally explain the main points. This will increase the tendency of the audience to tune out.
I suspect computational chemists are particularly bad at this. They like to show all these quantities they have calculated with different levels of theory and different basis sets.
If you want to highlight a trend [or lack of one] you need to graphically represent the data. The audience can then quickly understand and assess the result.
I can think of a couple of exceptions from my own talks. Then I have merely a the table as an "existence proof".
"The parameters describing the spectral density for a wide range of chromophores in a wide range of solvents and proteins have been determined experimentally. Here is a table from my paper showing that. Nevertheless, some theorists write papers with unrealistic spectral densities."