Create table of two user's AD groups

Question

So I can't figure out how to get PowerShell to display a table to compare 2 user's AD group memberships. The script doesn't have to do any comparison itself, simply display a table. Username as heading, and the rows underneath being their respective groups.

All I've got so far is 2 variables containing the groups lists

Function Show-Groups ($usr1,$usr2)
{
   $groups1 = (((Get-ADUser $usr1 -Prop memberof).memberof) | Foreach-Object {(Get-ADGroup $_ -Prop samaccountname).samaccountname})
   $groups2 = (((Get-ADUser $usr2 -Prop memberof).memberof) | Foreach-Object {(Get-ADGroup $_ -Prop samaccountname).samaccountname})

   # Code to display in table?
}

I'm sure there's a clever way of doing this thought Format-Table, or creating a 2 dimensional array, or a hash table or something... I've played about with these the best I understand, but nothing that will output like:

SomeUser                    SomeOtherUser
--------                    -------------
Admin                       Underpaid
Document Readers            Document Readers
Document Writers            Remote Workers
Office Workers

Any advice would be greatly appreciated.

Answer 1

Not tested:

Function Show-Groups ($usr1,$usr2)
{
   $groups1 = (((Get-ADUser $usr1 -Prop memberof).memberof) | Foreach-Object {(Get-ADGroup $_ -Prop samaccountname).samaccountname})
   $groups2 = (((Get-ADUser $usr2 -Prop memberof).memberof) | Foreach-Object {(Get-ADGroup $_ -Prop samaccountname).samaccountname})

   $diff = $groups1.count - $groups2.count
   if ($diff -gt 0){$groups2 += ,''*$diff}
   else {$groups1 += ,''*-$diff}

   $i=0
   $groups1 | 
    foreach {
    [PSCustomObject]@{
     $Usr1 = $_
     $Usr2 = $groups2[$i++]
     }
    }
}

Answer 2

Try this, tested successfully on PS2:

Function Show-Groups ($usr1,$usr2)
{
    $groups1 = (((Get-ADUser $usr1 -Prop memberof).memberof) | Foreach-Object {(Get-ADGroup $_ -Prop samaccountname).samaccountname})
    $groups2 = (((Get-ADUser $usr2 -Prop memberof).memberof) | Foreach-Object {(Get-ADGroup $_ -Prop samaccountname).samaccountname})


    $arr=@()    
    $target1 = $groups1
    $target2 = $groups2
    if($groups2.Length -gt $groups1.Length)
    {
        $target1 = $groups2
        $target2 = $groups1
    }
    for($i= 0; $i -lt $target1.Length;$i++)
    { 
        $arr += , (New-Object pscustomobject -Property @{$usr1=$target1[$i];$usr2=$target2[$i]}) 
    }
    $arr
}